<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019f1a21-fa2b-7405-aef3-2f19670daf2d,g:662d9593-3503-40af-b59b-2dedda79ced9-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSTOCKHOLDERSEQUITY" xlink:type="simple" xlink:href="fcfs-20260630.xsd#CONSOLIDATEDSTATEMENTSOFCHANGESINSTOCKHOLDERSEQUITY"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSTOCKHOLDERSEQUITY" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019f1a21-fc48-78f4-af40-09611a7a8ee1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019f1a21-fc48-7ae0-88cb-7320d0695ef2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019f1a21-fc48-78f4-af40-09611a7a8ee1" xlink:to="loc_us-gaap_StatementTable_019f1a21-fc48-7ae0-88cb-7320d0695ef2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019f1a21-fc48-7ef3-91c8-6d68e230097d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019f1a21-fc48-7ae0-88cb-7320d0695ef2" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019f1a21-fc48-7ef3-91c8-6d68e230097d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019f1a21-fc48-7ef3-91c8-6d68e230097d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019f1a21-fc48-7ef3-91c8-6d68e230097d" xlink:to="loc_us-gaap_EquityComponentDomain_019f1a21-fc48-7ef3-91c8-6d68e230097d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019f1a21-fc48-7120-8620-556161f4c637" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019f1a21-fc48-7ef3-91c8-6d68e230097d" xlink:to="loc_us-gaap_EquityComponentDomain_019f1a21-fc48-7120-8620-556161f4c637" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019f1a21-fc48-7e80-a55c-66e7db0f5c88" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f1a21-fc48-7120-8620-556161f4c637" xlink:to="loc_us-gaap_CommonStockMember_019f1a21-fc48-7e80-a55c-66e7db0f5c88" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_019f1a21-fc48-7f7c-9b9c-649e0d469d5a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f1a21-fc48-7120-8620-556161f4c637" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_019f1a21-fc48-7f7c-9b9c-649e0d469d5a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_019f1a21-fc48-7d4b-8a69-e5aceb43642c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f1a21-fc48-7120-8620-556161f4c637" xlink:to="loc_us-gaap_RetainedEarningsMember_019f1a21-fc48-7d4b-8a69-e5aceb43642c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019f1a21-fc48-73ad-b9a1-9af52bb3f687" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f1a21-fc48-7120-8620-556161f4c637" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019f1a21-fc48-73ad-b9a1-9af52bb3f687" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonMember_019f1a21-fc48-70c5-82be-3699a2b59c8e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f1a21-fc48-7120-8620-556161f4c637" xlink:to="loc_us-gaap_TreasuryStockCommonMember_019f1a21-fc48-70c5-82be-3699a2b59c8e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f1a21-fc48-755b-abe3-e56471d0334e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f1a21-fc48-78f4-af40-09611a7a8ee1" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f1a21-fc48-755b-abe3-e56471d0334e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_019f1a21-fc48-791d-aeda-2efae9df0189" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f1a21-fc48-755b-abe3-e56471d0334e" xlink:to="loc_us-gaap_CommonStockSharesIssued_019f1a21-fc48-791d-aeda-2efae9df0189" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019f1a21-fc48-70ab-a3ea-ff1b6dafc15b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f1a21-fc48-755b-abe3-e56471d0334e" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019f1a21-fc48-70ab-a3ea-ff1b6dafc15b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonShares_019f1a21-fc48-754a-a62b-fe171bbc61a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f1a21-fc48-755b-abe3-e56471d0334e" xlink:to="loc_us-gaap_TreasuryStockCommonShares_019f1a21-fc48-754a-a62b-fe171bbc61a1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_019f1a21-fc48-76d2-9a46-5aa4a4d85107" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f1a21-fc48-755b-abe3-e56471d0334e" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_019f1a21-fc48-76d2-9a46-5aa4a4d85107" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_019f1a21-fc48-7b32-b18a-ed411590c0bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f1a21-fc48-755b-abe3-e56471d0334e" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_019f1a21-fc48-7b32-b18a-ed411590c0bb" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_019f1a21-fc48-7836-a20b-fbee997d0037" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f1a21-fc48-755b-abe3-e56471d0334e" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_019f1a21-fc48-7836-a20b-fbee997d0037" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019f1a21-fc48-780a-9233-d5758b669688" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f1a21-fc48-755b-abe3-e56471d0334e" xlink:to="loc_us-gaap_NetIncomeLoss_019f1a21-fc48-780a-9233-d5758b669688" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Dividends_019f1a21-fc48-77d1-aa1f-9602c141b077" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Dividends"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f1a21-fc48-755b-abe3-e56471d0334e" xlink:to="loc_us-gaap_Dividends_019f1a21-fc48-77d1-aa1f-9602c141b077" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax_019f1a21-fc48-7b8d-8d39-3a3de0a84338" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f1a21-fc48-755b-abe3-e56471d0334e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax_019f1a21-fc48-7b8d-8d39-3a3de0a84338" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_019f1a21-fc48-76ac-b781-f78a1439124d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockSharesAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f1a21-fc48-755b-abe3-e56471d0334e" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_019f1a21-fc48-76ac-b781-f78a1439124d" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_019f1a21-fc48-735b-93ca-8464d74b9f55" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f1a21-fc48-755b-abe3-e56471d0334e" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_019f1a21-fc48-735b-93ca-8464d74b9f55" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonShares_019f1a21-fc48-7a2f-8f75-9c4ed587a454" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonShares"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_019f1a21-fc48-7101-9aed-1c332271a2d4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019f1a21-fc48-7f37-8ea9-20add3977ba6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/AcquisitionsNarrativeDetails" xlink:type="simple" xlink:href="fcfs-20260630.xsd#AcquisitionsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/AcquisitionsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_019f1a21-fd0b-7c01-8a27-0fa4af9ea833" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019f1a21-fd0b-7651-874b-ea7db99016df" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019f1a21-fd0b-7c01-8a27-0fa4af9ea833" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019f1a21-fd0b-7651-874b-ea7db99016df" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_019f1a21-fd0b-7834-92de-68a933b2762c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019f1a21-fd0b-7651-874b-ea7db99016df" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_019f1a21-fd0b-7834-92de-68a933b2762c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1a21-fd0b-7834-92de-68a933b2762c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019f1a21-fd0b-7834-92de-68a933b2762c" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1a21-fd0b-7834-92de-68a933b2762c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1a21-fd0b-7460-934b-260d6bf8cee8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019f1a21-fd0b-7834-92de-68a933b2762c" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1a21-fd0b-7460-934b-260d6bf8cee8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_USPawnAcquisitionMember_019f1a21-fd0b-7864-8466-88691169eb9d" xlink:href="fcfs-20260630.xsd#fcfs_USPawnAcquisitionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1a21-fd0b-7460-934b-260d6bf8cee8" xlink:to="loc_fcfs_USPawnAcquisitionMember_019f1a21-fd0b-7864-8466-88691169eb9d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_USPawnAcquisitionPriorYearAcquisitionMember_019f9527-f589-7a92-9ad1-7d0701a5508c" xlink:href="fcfs-20260630.xsd#fcfs_USPawnAcquisitionPriorYearAcquisitionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1a21-fd0b-7460-934b-260d6bf8cee8" xlink:to="loc_fcfs_USPawnAcquisitionPriorYearAcquisitionMember_019f9527-f589-7a92-9ad1-7d0701a5508c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_RamsdensPendingAcquisitionMember_019f9528-43b0-7a88-87f4-0834843690a0" xlink:href="fcfs-20260630.xsd#fcfs_RamsdensPendingAcquisitionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1a21-fd0b-7460-934b-260d6bf8cee8" xlink:to="loc_fcfs_RamsdensPendingAcquisitionMember_019f9528-43b0-7a88-87f4-0834843690a0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_019f9528-43b0-7437-a1d3-983f2ecf0e3c" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StatementScenarioAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019f1a21-fd0b-7651-874b-ea7db99016df" xlink:to="loc_srt_StatementScenarioAxis_019f9528-43b0-7437-a1d3-983f2ecf0e3c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_019f9528-43b0-7437-a1d3-983f2ecf0e3c_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_019f9528-43b0-7437-a1d3-983f2ecf0e3c" xlink:to="loc_srt_ScenarioUnspecifiedDomain_019f9528-43b0-7437-a1d3-983f2ecf0e3c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_019f9528-43b0-7372-9cc8-fa76705b17aa" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_019f9528-43b0-7437-a1d3-983f2ecf0e3c" xlink:to="loc_srt_ScenarioUnspecifiedDomain_019f9528-43b0-7372-9cc8-fa76705b17aa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_019f9528-43b0-79ec-8b6b-7233da7a6df1" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ScenarioForecastMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_019f9528-43b0-7372-9cc8-fa76705b17aa" xlink:to="loc_srt_ScenarioForecastMember_019f9528-43b0-79ec-8b6b-7233da7a6df1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_019f1a21-fd0b-7a16-89c2-bce990799a56" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockAcquiredAverageCostPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019f1a21-fd0b-7c01-8a27-0fa4af9ea833" xlink:to="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_019f1a21-fd0b-7a16-89c2-bce990799a56" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_019f9528-43b0-7182-a53f-1c520254b566" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockDividendsPerShareDeclared"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019f1a21-fd0b-7c01-8a27-0fa4af9ea833" xlink:to="loc_us-gaap_CommonStockDividendsPerShareDeclared_019f9528-43b0-7182-a53f-1c520254b566" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019f1a21-fd0b-70a8-bda4-90cbd79de9ef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationConsiderationTransferred1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019f1a21-fd0b-7c01-8a27-0fa4af9ea833" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019f1a21-fd0b-70a8-bda4-90cbd79de9ef" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyExchangeRateTranslation1_019f1a21-fd0b-7613-984d-4a0631c81487" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignCurrencyExchangeRateTranslation1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019f1a21-fd0b-7c01-8a27-0fa4af9ea833" xlink:to="loc_us-gaap_ForeignCurrencyExchangeRateTranslation1_019f1a21-fd0b-7613-984d-4a0631c81487" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_BusinessCombinationNumberOfStoresAcquired_019f1a21-fd0b-7827-b11d-8a0ce3271837" xlink:href="fcfs-20260630.xsd#fcfs_BusinessCombinationNumberOfStoresAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019f1a21-fd0b-7c01-8a27-0fa4af9ea833" xlink:to="loc_fcfs_BusinessCombinationNumberOfStoresAcquired_019f1a21-fd0b-7827-b11d-8a0ce3271837" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_BusinessAcquisitionNumberOfTransactions_019f9524-cd90-7730-9c5c-69b1ddeb9ae2" xlink:href="fcfs-20260630.xsd#fcfs_BusinessAcquisitionNumberOfTransactions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019f1a21-fd0b-7c01-8a27-0fa4af9ea833" xlink:to="loc_fcfs_BusinessAcquisitionNumberOfTransactions_019f9524-cd90-7730-9c5c-69b1ddeb9ae2" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_019f1a21-fd0b-7d93-b062-388b9c1c0936" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019f1a21-fd0b-7c01-8a27-0fa4af9ea833" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_019f1a21-fd0b-7d93-b062-388b9c1c0936" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_019f9527-0c4a-7838-a2a1-2be38815cfd5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019f1a21-fd0b-7c01-8a27-0fa4af9ea833" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_019f9527-0c4a-7838-a2a1-2be38815cfd5" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/OperatingLeasesNarrativeDetails" xlink:type="simple" xlink:href="fcfs-20260630.xsd#OperatingLeasesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/OperatingLeasesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f1a21-fc48-77b5-8879-0e5a0d50ffd8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_019f1a21-fc48-7a0e-aa50-d4beded88842" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f1a21-fc48-77b5-8879-0e5a0d50ffd8" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_019f1a21-fc48-7a0e-aa50-d4beded88842" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019f1a21-fc48-7279-91e9-12e034532d73" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_019f1a21-fc48-7a0e-aa50-d4beded88842" xlink:to="loc_srt_RangeAxis_019f1a21-fc48-7279-91e9-12e034532d73" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f1a21-fc48-7279-91e9-12e034532d73_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019f1a21-fc48-7279-91e9-12e034532d73" xlink:to="loc_srt_RangeMember_019f1a21-fc48-7279-91e9-12e034532d73_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f1a21-fc48-7c37-a2b3-d102d72d13bb" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019f1a21-fc48-7279-91e9-12e034532d73" xlink:to="loc_srt_RangeMember_019f1a21-fc48-7c37-a2b3-d102d72d13bb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019f1a21-fc48-7080-a935-fe0f325b3b18" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019f1a21-fc48-7c37-a2b3-d102d72d13bb" xlink:to="loc_srt_MinimumMember_019f1a21-fc48-7080-a935-fe0f325b3b18" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019f1a21-fc48-7870-8e8d-14eeba355e67" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019f1a21-fc48-7c37-a2b3-d102d72d13bb" xlink:to="loc_srt_MaximumMember_019f1a21-fc48-7870-8e8d-14eeba355e67" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019f1a21-fc48-7c42-8318-01b952d772f4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfIncomeLocationBalanceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_019f1a21-fc48-7a0e-aa50-d4beded88842" xlink:to="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019f1a21-fc48-7c42-8318-01b952d772f4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019f1a21-fc48-7186-b477-d6a2e60dcf1a" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_019f1a21-fc48-7a0e-aa50-d4beded88842" xlink:to="loc_srt_StatementGeographicalAxis_019f1a21-fc48-7186-b477-d6a2e60dcf1a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019f1a21-fc48-7186-b477-d6a2e60dcf1a_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_019f1a21-fc48-7186-b477-d6a2e60dcf1a" xlink:to="loc_srt_SegmentGeographicalDomain_019f1a21-fc48-7186-b477-d6a2e60dcf1a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019f1a21-fc48-7796-a4df-3e391b118972" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_019f1a21-fc48-7186-b477-d6a2e60dcf1a" xlink:to="loc_srt_SegmentGeographicalDomain_019f1a21-fc48-7796-a4df-3e391b118972" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_019f1a21-fc48-75a0-a22d-a6a1c919be61" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019f1a21-fc48-7796-a4df-3e391b118972" xlink:to="loc_country_US_019f1a21-fc48-75a0-a22d-a6a1c919be61" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_OperatingLeaseGeographicLocationLeasedPercent_019f1a21-fc48-73b4-933f-0763acef15e4" xlink:href="fcfs-20260630.xsd#fcfs_OperatingLeaseGeographicLocationLeasedPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f1a21-fc48-77b5-8879-0e5a0d50ffd8" xlink:to="loc_fcfs_OperatingLeaseGeographicLocationLeasedPercent_019f1a21-fc48-73b4-933f-0763acef15e4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseTermOfContract_019f1a21-fc48-7711-9eb0-f0d77a9348a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseTermOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f1a21-fc48-77b5-8879-0e5a0d50ffd8" xlink:to="loc_us-gaap_LesseeOperatingLeaseTermOfContract_019f1a21-fc48-7711-9eb0-f0d77a9348a6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_019f1a21-fc49-764a-87f0-4f4726542167" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseRenewalTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f1a21-fc48-77b5-8879-0e5a0d50ffd8" xlink:to="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_019f1a21-fc49-764a-87f0-4f4726542167" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_019f1a21-fc49-7402-bb26-0a74649c4521" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f1a21-fc48-77b5-8879-0e5a0d50ffd8" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_019f1a21-fc49-7402-bb26-0a74649c4521" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_019f1a21-fc49-7071-b073-0ffc8930801a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f1a21-fc48-77b5-8879-0e5a0d50ffd8" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_019f1a21-fc49-7071-b073-0ffc8930801a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_019f1a21-fc49-7447-b71d-129505b68e0d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f1a21-fc48-77b5-8879-0e5a0d50ffd8" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_019f1a21-fc49-7447-b71d-129505b68e0d" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/OperatingLeasesNarrativeDetails_1" xlink:type="simple" xlink:href="fcfs-20260630.xsd#OperatingLeasesNarrativeDetails_1"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/OperatingLeasesNarrativeDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f1a21-fc48-77b5-8879-0e5a0d50ffd8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_019f1a21-fc48-7a0e-aa50-d4beded88842" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f1a21-fc48-77b5-8879-0e5a0d50ffd8" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_019f1a21-fc48-7a0e-aa50-d4beded88842" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019f1a21-fc48-7279-91e9-12e034532d73" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_019f1a21-fc48-7a0e-aa50-d4beded88842" xlink:to="loc_srt_RangeAxis_019f1a21-fc48-7279-91e9-12e034532d73" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f1a21-fc48-7279-91e9-12e034532d73_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019f1a21-fc48-7279-91e9-12e034532d73" xlink:to="loc_srt_RangeMember_019f1a21-fc48-7279-91e9-12e034532d73_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f1a21-fc48-7c37-a2b3-d102d72d13bb" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019f1a21-fc48-7279-91e9-12e034532d73" xlink:to="loc_srt_RangeMember_019f1a21-fc48-7c37-a2b3-d102d72d13bb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019f1a21-fc48-7080-a935-fe0f325b3b18" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019f1a21-fc48-7c37-a2b3-d102d72d13bb" xlink:to="loc_srt_MinimumMember_019f1a21-fc48-7080-a935-fe0f325b3b18" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019f1a21-fc48-7870-8e8d-14eeba355e67" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019f1a21-fc48-7c37-a2b3-d102d72d13bb" xlink:to="loc_srt_MaximumMember_019f1a21-fc48-7870-8e8d-14eeba355e67" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019f1a21-fc48-7186-b477-d6a2e60dcf1a" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_019f1a21-fc48-7a0e-aa50-d4beded88842" xlink:to="loc_srt_StatementGeographicalAxis_019f1a21-fc48-7186-b477-d6a2e60dcf1a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019f1a21-fc48-7186-b477-d6a2e60dcf1a_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_019f1a21-fc48-7186-b477-d6a2e60dcf1a" xlink:to="loc_srt_SegmentGeographicalDomain_019f1a21-fc48-7186-b477-d6a2e60dcf1a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019f1a21-fc48-7796-a4df-3e391b118972" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_019f1a21-fc48-7186-b477-d6a2e60dcf1a" xlink:to="loc_srt_SegmentGeographicalDomain_019f1a21-fc48-7796-a4df-3e391b118972" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_019f1a21-fc48-75a0-a22d-a6a1c919be61" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019f1a21-fc48-7796-a4df-3e391b118972" xlink:to="loc_country_US_019f1a21-fc48-75a0-a22d-a6a1c919be61" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_OperatingLeaseGeographicLocationLeasedPercent_019f1a21-fc48-73b4-933f-0763acef15e4" xlink:href="fcfs-20260630.xsd#fcfs_OperatingLeaseGeographicLocationLeasedPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f1a21-fc48-77b5-8879-0e5a0d50ffd8" xlink:to="loc_fcfs_OperatingLeaseGeographicLocationLeasedPercent_019f1a21-fc48-73b4-933f-0763acef15e4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseTermOfContract_019f1a21-fc48-7711-9eb0-f0d77a9348a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseTermOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f1a21-fc48-77b5-8879-0e5a0d50ffd8" xlink:to="loc_us-gaap_LesseeOperatingLeaseTermOfContract_019f1a21-fc48-7711-9eb0-f0d77a9348a6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_019f1a21-fc49-764a-87f0-4f4726542167" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseRenewalTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f1a21-fc48-77b5-8879-0e5a0d50ffd8" xlink:to="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_019f1a21-fc49-764a-87f0-4f4726542167" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_019f1a21-fc49-7402-bb26-0a74649c4521" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f1a21-fc48-77b5-8879-0e5a0d50ffd8" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_019f1a21-fc49-7402-bb26-0a74649c4521" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_019f1a21-fc49-7071-b073-0ffc8930801a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f1a21-fc48-77b5-8879-0e5a0d50ffd8" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_019f1a21-fc49-7071-b073-0ffc8930801a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_019f1a21-fc49-7447-b71d-129505b68e0d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f1a21-fc48-77b5-8879-0e5a0d50ffd8" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_019f1a21-fc49-7447-b71d-129505b68e0d" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/FairValueofFinancialInstrumentsFinancialAssetsandLiabilitiesNotMeasuredatFairValueDetails" xlink:type="simple" xlink:href="fcfs-20260630.xsd#FairValueofFinancialInstrumentsFinancialAssetsandLiabilitiesNotMeasuredatFairValueDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/FairValueofFinancialInstrumentsFinancialAssetsandLiabilitiesNotMeasuredatFairValueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019f1a21-fc49-7000-bbec-ec6e9d81e8b9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019f1a21-fc49-77c9-be7e-8b5f9d956d90" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByBalanceSheetGroupingTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019f1a21-fc49-7000-bbec-ec6e9d81e8b9" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019f1a21-fc49-77c9-be7e-8b5f9d956d90" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_019f1a21-fc49-7e17-bc31-322f374bba73" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019f1a21-fc49-77c9-be7e-8b5f9d956d90" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_019f1a21-fc49-7e17-bc31-322f374bba73" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019f1a21-fc49-7e17-bc31-322f374bba73_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_019f1a21-fc49-7e17-bc31-322f374bba73" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019f1a21-fc49-7e17-bc31-322f374bba73_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_019f1a21-fc49-7822-bff7-f841fec8b9e3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_019f1a21-fc49-7e17-bc31-322f374bba73" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_019f1a21-fc49-7822-bff7-f841fec8b9e3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019f1a21-fc49-795e-ace0-bc91ae927ef4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_019f1a21-fc49-7822-bff7-f841fec8b9e3" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019f1a21-fc49-795e-ace0-bc91ae927ef4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_019f1a21-fc49-7722-bf68-c7065422558d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019f1a21-fc49-795e-ace0-bc91ae927ef4" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_019f1a21-fc49-7722-bf68-c7065422558d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_019f1a21-fc49-7b8c-876a-53b6077a807d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019f1a21-fc49-795e-ace0-bc91ae927ef4" xlink:to="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_019f1a21-fc49-7b8c-876a-53b6077a807d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019f1a21-fc49-7336-bd87-09c3993d609b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019f1a21-fc49-77c9-be7e-8b5f9d956d90" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019f1a21-fc49-7336-bd87-09c3993d609b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f1a21-fc49-7336-bd87-09c3993d609b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019f1a21-fc49-7336-bd87-09c3993d609b" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f1a21-fc49-7336-bd87-09c3993d609b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f1a21-fc49-750d-92e2-87e8ec7ed1a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019f1a21-fc49-7336-bd87-09c3993d609b" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f1a21-fc49-750d-92e2-87e8ec7ed1a9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_019f1a21-fc49-7d1a-a789-b0ad39192957" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f1a21-fc49-750d-92e2-87e8ec7ed1a9" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_019f1a21-fc49-7d1a-a789-b0ad39192957" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019f1a21-fc49-7d4f-b7b9-545db444e695" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f1a21-fc49-750d-92e2-87e8ec7ed1a9" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019f1a21-fc49-7d4f-b7b9-545db444e695" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019f1a21-fc49-7a32-83b3-16f1432d5b73" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f1a21-fc49-750d-92e2-87e8ec7ed1a9" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019f1a21-fc49-7a32-83b3-16f1432d5b73" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_019f1a21-fc49-78da-82b3-605742601e94" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablePortfolioSegmentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019f1a21-fc49-77c9-be7e-8b5f9d956d90" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_019f1a21-fc49-78da-82b3-605742601e94" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019f1a21-fc49-78da-82b3-605742601e94_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_019f1a21-fc49-78da-82b3-605742601e94" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019f1a21-fc49-78da-82b3-605742601e94_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019f1a21-fc49-7068-8b41-ea3565f20985" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_019f1a21-fc49-78da-82b3-605742601e94" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019f1a21-fc49-7068-8b41-ea3565f20985" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_PawnLoansMember_019f1a21-fc49-7233-b0a7-149fbbe7fba8" xlink:href="fcfs-20260630.xsd#fcfs_PawnLoansMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019f1a21-fc49-7068-8b41-ea3565f20985" xlink:to="loc_fcfs_PawnLoansMember_019f1a21-fc49-7233-b0a7-149fbbe7fba8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceReceivablesMember_019f1a21-fc49-73aa-ab6e-3f8329d8f459" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceReceivablesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_019f1a21-fc49-7068-8b41-ea3565f20985" xlink:to="loc_us-gaap_FinanceReceivablesMember_019f1a21-fc49-73aa-ab6e-3f8329d8f459" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019f1a21-fc49-74b8-b487-53fc58568132" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019f1a21-fc49-77c9-be7e-8b5f9d956d90" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019f1a21-fc49-74b8-b487-53fc58568132" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-74b8-b487-53fc58568132_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019f1a21-fc49-74b8-b487-53fc58568132" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-74b8-b487-53fc58568132_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-72bd-8655-efec520b9fa9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019f1a21-fc49-74b8-b487-53fc58568132" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-72bd-8655-efec520b9fa9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019f1a21-fc49-7be9-b452-913e23eb0e6c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-72bd-8655-efec520b9fa9" xlink:to="loc_us-gaap_LineOfCreditMember_019f1a21-fc49-7be9-b452-913e23eb0e6c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019f1a21-fc49-7ede-964a-02857e04cd90" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-72bd-8655-efec520b9fa9" xlink:to="loc_us-gaap_SeniorNotesMember_019f1a21-fc49-7ede-964a-02857e04cd90" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_OffBalanceSheetCreditExposureMember_019f1a21-fc49-771f-937e-0283d47c4ab7" xlink:href="fcfs-20260630.xsd#fcfs_OffBalanceSheetCreditExposureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-72bd-8655-efec520b9fa9" xlink:to="loc_fcfs_OffBalanceSheetCreditExposureMember_019f1a21-fc49-771f-937e-0283d47c4ab7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019f1a21-fc49-7e86-9f6b-12ca6fe63b03" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019f1a21-fc49-7000-bbec-ec6e9d81e8b9" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019f1a21-fc49-7e86-9f6b-12ca6fe63b03" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableFairValueDisclosure_019f1a21-fc49-7670-b74d-d875e2a27a33" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019f1a21-fc49-7000-bbec-ec6e9d81e8b9" xlink:to="loc_us-gaap_AccountsReceivableFairValueDisclosure_019f1a21-fc49-7670-b74d-d875e2a27a33" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansReceivableFairValueDisclosure_019f1a21-fc49-7411-a52a-684f1cfa7000" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LoansReceivableFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019f1a21-fc49-7000-bbec-ec6e9d81e8b9" xlink:to="loc_us-gaap_LoansReceivableFairValueDisclosure_019f1a21-fc49-7411-a52a-684f1cfa7000" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_019f1a21-fc49-760a-bc65-b669648d61e9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019f1a21-fc49-7000-bbec-ec6e9d81e8b9" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_019f1a21-fc49-760a-bc65-b669648d61e9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue_019f1a21-fc49-7b15-8199-68cb717e23d8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019f1a21-fc49-7000-bbec-ec6e9d81e8b9" xlink:to="loc_us-gaap_LongTermDebtFairValue_019f1a21-fc49-7b15-8199-68cb717e23d8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_019f1a21-fc49-764e-bbce-0477b611b494" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialLiabilitiesFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019f1a21-fc49-7000-bbec-ec6e9d81e8b9" xlink:to="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_019f1a21-fc49-764e-bbce-0477b611b494" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_FinancingReceivableBeforeAllowanceForCreditLossFeePremiumAndDiscount_019f1a21-fc49-7d43-a300-42198d392012" xlink:href="fcfs-20260630.xsd#fcfs_FinancingReceivableBeforeAllowanceForCreditLossFeePremiumAndDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019f1a21-fc49-7000-bbec-ec6e9d81e8b9" xlink:to="loc_fcfs_FinancingReceivableBeforeAllowanceForCreditLossFeePremiumAndDiscount_019f1a21-fc49-7d43-a300-42198d392012" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/FinanceReceivablesNetAgingofFinanceReceivableDetails" xlink:type="simple" xlink:href="fcfs-20260630.xsd#FinanceReceivablesNetAgingofFinanceReceivableDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/FinanceReceivablesNetAgingofFinanceReceivableDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019f1a21-fc49-7e60-8736-5e2487f39772" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_019f1a21-fc49-7e63-884e-763462e702cf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfFinancingReceivablesPastDueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019f1a21-fc49-7e60-8736-5e2487f39772" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_019f1a21-fc49-7e63-884e-763462e702cf" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_019f1a21-fc49-7d85-820c-5c77525818aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablesPeriodPastDueAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_019f1a21-fc49-7e63-884e-763462e702cf" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_019f1a21-fc49-7d85-820c-5c77525818aa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_019f1a21-fc49-7d85-820c-5c77525818aa_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablesPeriodPastDueDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_019f1a21-fc49-7d85-820c-5c77525818aa" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_019f1a21-fc49-7d85-820c-5c77525818aa_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_019f1a21-fc49-7baa-bced-05a2e7d69174" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivablesPeriodPastDueDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_019f1a21-fc49-7d85-820c-5c77525818aa" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_019f1a21-fc49-7baa-bced-05a2e7d69174" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivables1To29DaysPastDueMember_019f1a21-fc49-7dc2-8451-651e3efd74ce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivables1To29DaysPastDueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_019f1a21-fc49-7baa-bced-05a2e7d69174" xlink:to="loc_us-gaap_FinancingReceivables1To29DaysPastDueMember_019f1a21-fc49-7dc2-8451-651e3efd74ce" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivables30To59DaysPastDueMember_019f1a21-fc49-73c1-a191-b039eff070e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivables30To59DaysPastDueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_019f1a21-fc49-7baa-bced-05a2e7d69174" xlink:to="loc_us-gaap_FinancingReceivables30To59DaysPastDueMember_019f1a21-fc49-73c1-a191-b039eff070e7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivables60To89DaysPastDueMember_019f1a21-fc49-7058-9279-7dc203c067ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivables60To89DaysPastDueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_019f1a21-fc49-7baa-bced-05a2e7d69174" xlink:to="loc_us-gaap_FinancingReceivables60To89DaysPastDueMember_019f1a21-fc49-7058-9279-7dc203c067ed" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialAssetPastDueMember_019f1a21-fc49-7ae1-b256-0c8eef751c6f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialAssetPastDueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_019f1a21-fc49-7baa-bced-05a2e7d69174" xlink:to="loc_us-gaap_FinancialAssetPastDueMember_019f1a21-fc49-7ae1-b256-0c8eef751c6f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialAssetNotPastDueMember_019f1a21-fc49-70ba-b6fb-a54f4d817632" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialAssetNotPastDueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_019f1a21-fc49-7baa-bced-05a2e7d69174" xlink:to="loc_us-gaap_FinancialAssetNotPastDueMember_019f1a21-fc49-70ba-b6fb-a54f4d817632" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_OriginationYearAxis_019f1a21-fc49-780f-af75-1a3fd500e3f3" xlink:href="fcfs-20260630.xsd#fcfs_OriginationYearAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_019f1a21-fc49-7e63-884e-763462e702cf" xlink:to="loc_fcfs_OriginationYearAxis_019f1a21-fc49-780f-af75-1a3fd500e3f3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_OriginationYearDomain_019f1a21-fc49-780f-af75-1a3fd500e3f3_default" xlink:href="fcfs-20260630.xsd#fcfs_OriginationYearDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_fcfs_OriginationYearAxis_019f1a21-fc49-780f-af75-1a3fd500e3f3" xlink:to="loc_fcfs_OriginationYearDomain_019f1a21-fc49-780f-af75-1a3fd500e3f3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_OriginationYearDomain_019f1a21-fc49-75dc-88a8-44d68e59996b" xlink:href="fcfs-20260630.xsd#fcfs_OriginationYearDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_fcfs_OriginationYearAxis_019f1a21-fc49-780f-af75-1a3fd500e3f3" xlink:to="loc_fcfs_OriginationYearDomain_019f1a21-fc49-75dc-88a8-44d68e59996b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_CurrentYearMember_019f1a21-fc49-7759-8b0f-1352d2b44639" xlink:href="fcfs-20260630.xsd#fcfs_CurrentYearMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_OriginationYearDomain_019f1a21-fc49-75dc-88a8-44d68e59996b" xlink:to="loc_fcfs_CurrentYearMember_019f1a21-fc49-7759-8b0f-1352d2b44639" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_PriorYearMember_019f1a21-fc49-7417-b09c-0b6dc53a40ff" xlink:href="fcfs-20260630.xsd#fcfs_PriorYearMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_OriginationYearDomain_019f1a21-fc49-75dc-88a8-44d68e59996b" xlink:to="loc_fcfs_PriorYearMember_019f1a21-fc49-7417-b09c-0b6dc53a40ff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_TwoYearsPriorMember_019f1a21-fc49-7d11-8eb9-9d64962fffc8" xlink:href="fcfs-20260630.xsd#fcfs_TwoYearsPriorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_OriginationYearDomain_019f1a21-fc49-75dc-88a8-44d68e59996b" xlink:to="loc_fcfs_TwoYearsPriorMember_019f1a21-fc49-7d11-8eb9-9d64962fffc8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_ThreeYearsPriorMember_019f1a21-fc49-7d5e-bb56-7c70e230214a" xlink:href="fcfs-20260630.xsd#fcfs_ThreeYearsPriorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_OriginationYearDomain_019f1a21-fc49-75dc-88a8-44d68e59996b" xlink:to="loc_fcfs_ThreeYearsPriorMember_019f1a21-fc49-7d5e-bb56-7c70e230214a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesReceivableGross_019f1a21-fc49-7cd8-aaa7-6bcf9af09109" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NotesReceivableGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019f1a21-fc49-7e60-8736-5e2487f39772" xlink:to="loc_us-gaap_NotesReceivableGross_019f1a21-fc49-7cd8-aaa7-6bcf9af09109" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_FinanceReceivableBeforeAllowanceForCreditLossPremiumAndDiscount_019f1a21-fc49-7492-83cf-67f6a477338c" xlink:href="fcfs-20260630.xsd#fcfs_FinanceReceivableBeforeAllowanceForCreditLossPremiumAndDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_019f1a21-fc49-7e60-8736-5e2487f39772" xlink:to="loc_fcfs_FinanceReceivableBeforeAllowanceForCreditLossPremiumAndDiscount_019f1a21-fc49-7492-83cf-67f6a477338c" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/FinanceReceivablesChargeoffsDetails" xlink:type="simple" xlink:href="fcfs-20260630.xsd#FinanceReceivablesChargeoffsDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/FinanceReceivablesChargeoffsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_ScheduleOfFinanceReceivableChargeOffsToAllowanceForCreditLossesLineItems_019f1a21-fc49-7ad1-bf33-930ada6edc6d" xlink:href="fcfs-20260630.xsd#fcfs_ScheduleOfFinanceReceivableChargeOffsToAllowanceForCreditLossesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_ScheduleOfFinanceReceivableChargeOffsToAllowanceForCreditLossesTable_019f1a21-fc49-7a1c-93f1-870ad7cb33fb" xlink:href="fcfs-20260630.xsd#fcfs_ScheduleOfFinanceReceivableChargeOffsToAllowanceForCreditLossesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_fcfs_ScheduleOfFinanceReceivableChargeOffsToAllowanceForCreditLossesLineItems_019f1a21-fc49-7ad1-bf33-930ada6edc6d" xlink:to="loc_fcfs_ScheduleOfFinanceReceivableChargeOffsToAllowanceForCreditLossesTable_019f1a21-fc49-7a1c-93f1-870ad7cb33fb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_OriginationYearAxis_019f1a21-fc49-70cc-ba40-aacc819e37da" xlink:href="fcfs-20260630.xsd#fcfs_OriginationYearAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_fcfs_ScheduleOfFinanceReceivableChargeOffsToAllowanceForCreditLossesTable_019f1a21-fc49-7a1c-93f1-870ad7cb33fb" xlink:to="loc_fcfs_OriginationYearAxis_019f1a21-fc49-70cc-ba40-aacc819e37da" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_OriginationYearDomain_019f1a21-fc49-70cc-ba40-aacc819e37da_default" xlink:href="fcfs-20260630.xsd#fcfs_OriginationYearDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_fcfs_OriginationYearAxis_019f1a21-fc49-70cc-ba40-aacc819e37da" xlink:to="loc_fcfs_OriginationYearDomain_019f1a21-fc49-70cc-ba40-aacc819e37da_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_OriginationYearDomain_019f1a21-fc49-7134-a905-a97694d05cda" xlink:href="fcfs-20260630.xsd#fcfs_OriginationYearDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_fcfs_OriginationYearAxis_019f1a21-fc49-70cc-ba40-aacc819e37da" xlink:to="loc_fcfs_OriginationYearDomain_019f1a21-fc49-7134-a905-a97694d05cda" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_CurrentYearMember_019f1a21-fc49-77c6-abbb-62d35e9746ac" xlink:href="fcfs-20260630.xsd#fcfs_CurrentYearMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_OriginationYearDomain_019f1a21-fc49-7134-a905-a97694d05cda" xlink:to="loc_fcfs_CurrentYearMember_019f1a21-fc49-77c6-abbb-62d35e9746ac" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_PriorYearMember_019f1a21-fc49-7545-9ffa-538e6f13c3fc" xlink:href="fcfs-20260630.xsd#fcfs_PriorYearMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_OriginationYearDomain_019f1a21-fc49-7134-a905-a97694d05cda" xlink:to="loc_fcfs_PriorYearMember_019f1a21-fc49-7545-9ffa-538e6f13c3fc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_TwoYearsPriorMember_019f1a21-fc49-75b5-ae40-3900c2457127" xlink:href="fcfs-20260630.xsd#fcfs_TwoYearsPriorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_OriginationYearDomain_019f1a21-fc49-7134-a905-a97694d05cda" xlink:to="loc_fcfs_TwoYearsPriorMember_019f1a21-fc49-75b5-ae40-3900c2457127" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_ThreeYearsPriorMember_019f1a21-fc49-7330-a461-1414a2dfbf3b" xlink:href="fcfs-20260630.xsd#fcfs_ThreeYearsPriorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_OriginationYearDomain_019f1a21-fc49-7134-a905-a97694d05cda" xlink:to="loc_fcfs_ThreeYearsPriorMember_019f1a21-fc49-7330-a461-1414a2dfbf3b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_019f1a21-fc49-7508-bc74-9a9a9a243271" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfFinanceReceivableChargeOffsToAllowanceForCreditLossesLineItems_019f1a21-fc49-7ad1-bf33-930ada6edc6d" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_019f1a21-fc49-7508-bc74-9a9a9a243271" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/LongTermDebtSummaryDetails" xlink:type="simple" xlink:href="fcfs-20260630.xsd#LongTermDebtSummaryDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/LongTermDebtSummaryDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-724d-a6af-1d6c4228251c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019f1a21-fc49-715b-b8bd-14219a746ca2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-724d-a6af-1d6c4228251c" xlink:to="loc_us-gaap_DebtInstrumentTable_019f1a21-fc49-715b-b8bd-14219a746ca2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019f1a21-fc49-716a-b14f-ab800263050e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019f1a21-fc49-715b-b8bd-14219a746ca2" xlink:to="loc_us-gaap_DebtInstrumentAxis_019f1a21-fc49-716a-b14f-ab800263050e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-716a-b14f-ab800263050e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019f1a21-fc49-716a-b14f-ab800263050e" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-716a-b14f-ab800263050e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-7528-a2a4-a967d8149859" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019f1a21-fc49-716a-b14f-ab800263050e" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-7528-a2a4-a967d8149859" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_RevolvingUnsecuredCreditFacilityDue2029Member_019f1a21-fc49-705d-a852-cef0b1187a47" xlink:href="fcfs-20260630.xsd#fcfs_RevolvingUnsecuredCreditFacilityDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-7528-a2a4-a967d8149859" xlink:to="loc_fcfs_RevolvingUnsecuredCreditFacilityDue2029Member_019f1a21-fc49-705d-a852-cef0b1187a47" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_RevolvingSecuredCreditFacilityDue2027Member_019f1a21-fc49-7b57-93ee-d11ab44d34b7" xlink:href="fcfs-20260630.xsd#fcfs_RevolvingSecuredCreditFacilityDue2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-7528-a2a4-a967d8149859" xlink:to="loc_fcfs_RevolvingSecuredCreditFacilityDue2027Member_019f1a21-fc49-7b57-93ee-d11ab44d34b7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_RevolvingUnsecuredUncommittedCreditFacilityDue2027Member_019f1a21-fc49-7415-9f94-f9d791c5f100" xlink:href="fcfs-20260630.xsd#fcfs_RevolvingUnsecuredUncommittedCreditFacilityDue2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-7528-a2a4-a967d8149859" xlink:to="loc_fcfs_RevolvingUnsecuredUncommittedCreditFacilityDue2027Member_019f1a21-fc49-7415-9f94-f9d791c5f100" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_SecuredTermLoanDue2027Member_019f1a21-fc49-72dd-b357-9a44f3ebac58" xlink:href="fcfs-20260630.xsd#fcfs_SecuredTermLoanDue2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-7528-a2a4-a967d8149859" xlink:to="loc_fcfs_SecuredTermLoanDue2027Member_019f1a21-fc49-72dd-b357-9a44f3ebac58" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_SecuredTermLoanDue2029Member_019f1a21-fc49-7f72-9a77-f90168c0a586" xlink:href="fcfs-20260630.xsd#fcfs_SecuredTermLoanDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-7528-a2a4-a967d8149859" xlink:to="loc_fcfs_SecuredTermLoanDue2029Member_019f1a21-fc49-7f72-9a77-f90168c0a586" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_SecuredTermLoanDue2031Member_019f1a21-fc49-717c-9c09-1ad5d9680fcd" xlink:href="fcfs-20260630.xsd#fcfs_SecuredTermLoanDue2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-7528-a2a4-a967d8149859" xlink:to="loc_fcfs_SecuredTermLoanDue2031Member_019f1a21-fc49-717c-9c09-1ad5d9680fcd" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A4625SeniorUnsecuredNotesDue2028Member_019f1a21-fc49-793a-ab88-be50341acf39" xlink:href="fcfs-20260630.xsd#fcfs_A4625SeniorUnsecuredNotesDue2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-7528-a2a4-a967d8149859" xlink:to="loc_fcfs_A4625SeniorUnsecuredNotesDue2028Member_019f1a21-fc49-793a-ab88-be50341acf39" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A5625SeniorUnsecuredNotesDue2030Member_019f1a21-fc49-777a-ad50-95763a88960a" xlink:href="fcfs-20260630.xsd#fcfs_A5625SeniorUnsecuredNotesDue2030Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-7528-a2a4-a967d8149859" xlink:to="loc_fcfs_A5625SeniorUnsecuredNotesDue2030Member_019f1a21-fc49-777a-ad50-95763a88960a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A6.875SeniorUnsecuredNotesDue2032Member_019f1a21-fc49-7a04-963f-d3499c21dcce" xlink:href="fcfs-20260630.xsd#fcfs_A6.875SeniorUnsecuredNotesDue2032Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-7528-a2a4-a967d8149859" xlink:to="loc_fcfs_A6.875SeniorUnsecuredNotesDue2032Member_019f1a21-fc49-7a04-963f-d3499c21dcce" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A6.125SeniorUnsecuredNotesDue2034Member_019f94fa-7c55-7f5c-8323-ed9bc7c00247" xlink:href="fcfs-20260630.xsd#fcfs_A6.125SeniorUnsecuredNotesDue2034Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-7528-a2a4-a967d8149859" xlink:to="loc_fcfs_A6.125SeniorUnsecuredNotesDue2034Member_019f94fa-7c55-7f5c-8323-ed9bc7c00247" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019f1a21-fc49-7e45-903b-117aaa37351a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019f1a21-fc49-715b-b8bd-14219a746ca2" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019f1a21-fc49-7e45-903b-117aaa37351a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-7e45-903b-117aaa37351a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019f1a21-fc49-7e45-903b-117aaa37351a" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-7e45-903b-117aaa37351a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-7127-9e25-de8276ed7147" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019f1a21-fc49-7e45-903b-117aaa37351a" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-7127-9e25-de8276ed7147" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019f1a21-fc49-7f9b-bba5-209d3ed3efaa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-7127-9e25-de8276ed7147" xlink:to="loc_us-gaap_LineOfCreditMember_019f1a21-fc49-7f9b-bba5-209d3ed3efaa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_019f1a21-fc49-7290-92ea-7d85081795ce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-7127-9e25-de8276ed7147" xlink:to="loc_us-gaap_SecuredDebtMember_019f1a21-fc49-7290-92ea-7d85081795ce" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredDebtMember_019f1a21-fc49-7b70-aa1e-89c63ff3cff5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnsecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-7127-9e25-de8276ed7147" xlink:to="loc_us-gaap_UnsecuredDebtMember_019f1a21-fc49-7b70-aa1e-89c63ff3cff5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019f1a21-fc49-7a7a-80a1-c45c15dd54ca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-724d-a6af-1d6c4228251c" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019f1a21-fc49-7a7a-80a1-c45c15dd54ca" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019f1a21-fc49-794a-93cc-658760b060e8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-724d-a6af-1d6c4228251c" xlink:to="loc_us-gaap_LongTermDebt_019f1a21-fc49-794a-93cc-658760b060e8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_019f1a21-fc49-78e0-b4ed-c5d193bdb42e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-724d-a6af-1d6c4228251c" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_019f1a21-fc49-78e0-b4ed-c5d193bdb42e" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/LongTermDebtNarrativeDetails" xlink:type="simple" xlink:href="fcfs-20260630.xsd#LongTermDebtNarrativeDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/LongTermDebtNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019f1a21-fc49-785e-bffd-f771fcc446ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_us-gaap_DebtInstrumentTable_019f1a21-fc49-785e-bffd-f771fcc446ed" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019f1a21-fc49-7f81-9a60-ca33de7d828f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019f1a21-fc49-785e-bffd-f771fcc446ed" xlink:to="loc_us-gaap_DebtInstrumentAxis_019f1a21-fc49-7f81-9a60-ca33de7d828f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-7f81-9a60-ca33de7d828f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019f1a21-fc49-7f81-9a60-ca33de7d828f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-7f81-9a60-ca33de7d828f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-756d-a928-84011e8db55e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019f1a21-fc49-7f81-9a60-ca33de7d828f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-756d-a928-84011e8db55e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_RevolvingUnsecuredCreditFacilityDue2029Member_019f1a21-fc49-7476-b350-dc0a48f71f3b" xlink:href="fcfs-20260630.xsd#fcfs_RevolvingUnsecuredCreditFacilityDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-756d-a928-84011e8db55e" xlink:to="loc_fcfs_RevolvingUnsecuredCreditFacilityDue2029Member_019f1a21-fc49-7476-b350-dc0a48f71f3b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_RevolvingUnsecuredUncommittedCreditFacilityDue2027Member_019f1a21-fc49-7005-90b8-69b8f0613599" xlink:href="fcfs-20260630.xsd#fcfs_RevolvingUnsecuredUncommittedCreditFacilityDue2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-756d-a928-84011e8db55e" xlink:to="loc_fcfs_RevolvingUnsecuredUncommittedCreditFacilityDue2027Member_019f1a21-fc49-7005-90b8-69b8f0613599" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A4625SeniorUnsecuredNotesDue2028Member_019f1a21-fc49-722b-9c6c-70003c14403e" xlink:href="fcfs-20260630.xsd#fcfs_A4625SeniorUnsecuredNotesDue2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-756d-a928-84011e8db55e" xlink:to="loc_fcfs_A4625SeniorUnsecuredNotesDue2028Member_019f1a21-fc49-722b-9c6c-70003c14403e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A5625SeniorUnsecuredNotesDue2030Member_019f1a21-fc49-71ca-ba11-b26a31665aa9" xlink:href="fcfs-20260630.xsd#fcfs_A5625SeniorUnsecuredNotesDue2030Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-756d-a928-84011e8db55e" xlink:to="loc_fcfs_A5625SeniorUnsecuredNotesDue2030Member_019f1a21-fc49-71ca-ba11-b26a31665aa9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A6.875SeniorUnsecuredNotesDue2032Member_019f1a21-fc49-7f34-af22-7a4ff989844b" xlink:href="fcfs-20260630.xsd#fcfs_A6.875SeniorUnsecuredNotesDue2032Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-756d-a928-84011e8db55e" xlink:to="loc_fcfs_A6.875SeniorUnsecuredNotesDue2032Member_019f1a21-fc49-7f34-af22-7a4ff989844b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_U.K.TermLoansMember_019f1a21-fc49-79c6-94f5-7627a020481a" xlink:href="fcfs-20260630.xsd#fcfs_U.K.TermLoansMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-756d-a928-84011e8db55e" xlink:to="loc_fcfs_U.K.TermLoansMember_019f1a21-fc49-79c6-94f5-7627a020481a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_U.K.TermLoanBaseRatePlus4Point00PercentFixedSpreadMember_019f1a21-fc49-793a-979e-06a95a411cd9" xlink:href="fcfs-20260630.xsd#fcfs_U.K.TermLoanBaseRatePlus4Point00PercentFixedSpreadMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_U.K.TermLoansMember_019f1a21-fc49-79c6-94f5-7627a020481a" xlink:to="loc_fcfs_U.K.TermLoanBaseRatePlus4Point00PercentFixedSpreadMember_019f1a21-fc49-793a-979e-06a95a411cd9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_U.K.TermLoans8Point37PercentFixedRateLoanMember_019f1a21-fc49-710a-b9a1-04855086e346" xlink:href="fcfs-20260630.xsd#fcfs_U.K.TermLoans8Point37PercentFixedRateLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_U.K.TermLoansMember_019f1a21-fc49-79c6-94f5-7627a020481a" xlink:to="loc_fcfs_U.K.TermLoans8Point37PercentFixedRateLoanMember_019f1a21-fc49-710a-b9a1-04855086e346" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_U.K.TermLoans8Point43PercentFixedRateLoanMember_019f1a21-fc49-7f2c-b685-3eba69c4f1b5" xlink:href="fcfs-20260630.xsd#fcfs_U.K.TermLoans8Point43PercentFixedRateLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_U.K.TermLoansMember_019f1a21-fc49-79c6-94f5-7627a020481a" xlink:to="loc_fcfs_U.K.TermLoans8Point43PercentFixedRateLoanMember_019f1a21-fc49-7f2c-b685-3eba69c4f1b5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_U.K.CreditFacilityMember_019f1a21-fc49-767e-8078-10e7bc56abac" xlink:href="fcfs-20260630.xsd#fcfs_U.K.CreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-756d-a928-84011e8db55e" xlink:to="loc_fcfs_U.K.CreditFacilityMember_019f1a21-fc49-767e-8078-10e7bc56abac" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_A6.125SeniorUnsecuredNotesDue2034Member_019fa440-43b8-78b2-a911-1e6ea612be03" xlink:href="fcfs-20260630.xsd#fcfs_A6.125SeniorUnsecuredNotesDue2034Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f1a21-fc49-756d-a928-84011e8db55e" xlink:to="loc_fcfs_A6.125SeniorUnsecuredNotesDue2034Member_019fa440-43b8-78b2-a911-1e6ea612be03" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019f1a21-fc49-725f-b1c2-c26c1e2d823b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019f1a21-fc49-785e-bffd-f771fcc446ed" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019f1a21-fc49-725f-b1c2-c26c1e2d823b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-725f-b1c2-c26c1e2d823b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019f1a21-fc49-725f-b1c2-c26c1e2d823b" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-725f-b1c2-c26c1e2d823b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-75ed-bc72-1b2bd65df2dc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019f1a21-fc49-725f-b1c2-c26c1e2d823b" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-75ed-bc72-1b2bd65df2dc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019f1a21-fc49-7121-ba96-7a850851d68f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-75ed-bc72-1b2bd65df2dc" xlink:to="loc_us-gaap_LineOfCreditMember_019f1a21-fc49-7121-ba96-7a850851d68f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredDebtMember_019f1a21-fc49-766d-b33b-eb57206c2119" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnsecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-75ed-bc72-1b2bd65df2dc" xlink:to="loc_us-gaap_UnsecuredDebtMember_019f1a21-fc49-766d-b33b-eb57206c2119" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_019f1a21-fc49-7286-be17-36140da39d54" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019f1a21-fc49-75ed-bc72-1b2bd65df2dc" xlink:to="loc_us-gaap_SecuredDebtMember_019f1a21-fc49-7286-be17-36140da39d54" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_019f1a21-fc49-7b95-8e45-958e3d4545b8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019f1a21-fc49-785e-bffd-f771fcc446ed" xlink:to="loc_us-gaap_VariableRateAxis_019f1a21-fc49-7b95-8e45-958e3d4545b8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_019f1a21-fc49-7b95-8e45-958e3d4545b8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_019f1a21-fc49-7b95-8e45-958e3d4545b8" xlink:to="loc_us-gaap_VariableRateDomain_019f1a21-fc49-7b95-8e45-958e3d4545b8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_019f1a21-fc49-7d04-abe1-777185aafed4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_019f1a21-fc49-7b95-8e45-958e3d4545b8" xlink:to="loc_us-gaap_VariableRateDomain_019f1a21-fc49-7d04-abe1-777185aafed4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrimeRateMember_019f1a21-fc49-7bfe-9c1f-4e362528e6f9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrimeRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019f1a21-fc49-7d04-abe1-777185aafed4" xlink:to="loc_us-gaap_PrimeRateMember_019f1a21-fc49-7bfe-9c1f-4e362528e6f9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_019f1a21-fc49-7ebf-8cab-64e5ce6efb60" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019f1a21-fc49-7d04-abe1-777185aafed4" xlink:to="loc_us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_019f1a21-fc49-7ebf-8cab-64e5ce6efb60" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_MexicanCentralBankInterbankEquilibriumRateTIIEMember_019f1a21-fc49-7455-b540-fe5a0c60f819" xlink:href="fcfs-20260630.xsd#fcfs_MexicanCentralBankInterbankEquilibriumRateTIIEMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019f1a21-fc49-7d04-abe1-777185aafed4" xlink:to="loc_fcfs_MexicanCentralBankInterbankEquilibriumRateTIIEMember_019f1a21-fc49-7455-b540-fe5a0c60f819" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019f1a21-fc49-7b38-a2da-4329001264a8" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019f1a21-fc49-785e-bffd-f771fcc446ed" xlink:to="loc_srt_RangeAxis_019f1a21-fc49-7b38-a2da-4329001264a8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f1a21-fc49-7b38-a2da-4329001264a8_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019f1a21-fc49-7b38-a2da-4329001264a8" xlink:to="loc_srt_RangeMember_019f1a21-fc49-7b38-a2da-4329001264a8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f1a21-fc49-706a-8a60-0dde7f8888cb" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019f1a21-fc49-7b38-a2da-4329001264a8" xlink:to="loc_srt_RangeMember_019f1a21-fc49-706a-8a60-0dde7f8888cb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019f1a21-fc49-7a36-a56c-ad18b9045788" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019f1a21-fc49-706a-8a60-0dde7f8888cb" xlink:to="loc_srt_MinimumMember_019f1a21-fc49-7a36-a56c-ad18b9045788" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019f1a21-fc49-73be-8c1c-77db9282c4cb" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019f1a21-fc49-706a-8a60-0dde7f8888cb" xlink:to="loc_srt_MaximumMember_019f1a21-fc49-73be-8c1c-77db9282c4cb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_019f1a21-fc49-754f-8cf1-59fbd9354ea2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019f1a21-fc49-785e-bffd-f771fcc446ed" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_019f1a21-fc49-754f-8cf1-59fbd9354ea2" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1a21-fc49-754f-8cf1-59fbd9354ea2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019f1a21-fc49-754f-8cf1-59fbd9354ea2" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1a21-fc49-754f-8cf1-59fbd9354ea2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1a21-fc49-7f7b-8c44-2252999b1f4f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019f1a21-fc49-754f-8cf1-59fbd9354ea2" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1a21-fc49-7f7b-8c44-2252999b1f4f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_HTAcquisitionMember_019f1a21-fc49-7a49-93f9-c6676d87bc91" xlink:href="fcfs-20260630.xsd#fcfs_HTAcquisitionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1a21-fc49-7f7b-8c44-2252999b1f4f" xlink:to="loc_fcfs_HTAcquisitionMember_019f1a21-fc49-7a49-93f9-c6676d87bc91" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_JefferiesFinanceLLCMember_019f951c-00a7-70e3-8874-6f7e9b05af2e" xlink:href="fcfs-20260630.xsd#fcfs_JefferiesFinanceLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f1a21-fc49-7f7b-8c44-2252999b1f4f" xlink:to="loc_fcfs_JefferiesFinanceLLCMember_019f951c-00a7-70e3-8874-6f7e9b05af2e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_019f951d-34f1-777b-b81c-3a373a003b17" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019f1a21-fc49-785e-bffd-f771fcc446ed" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_019f951d-34f1-777b-b81c-3a373a003b17" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_019f951d-34f1-777b-b81c-3a373a003b17_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_019f951d-34f1-777b-b81c-3a373a003b17" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_019f951d-34f1-777b-b81c-3a373a003b17_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_019f951d-34f1-7afb-bc09-66ef7c0308bf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_019f951d-34f1-777b-b81c-3a373a003b17" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_019f951d-34f1-7afb-bc09-66ef7c0308bf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BridgeLoanMember_019f951d-5de8-7a71-aea4-d6c47fc431d0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BridgeLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_019f951d-34f1-7afb-bc09-66ef7c0308bf" xlink:to="loc_us-gaap_BridgeLoanMember_019f951d-5de8-7a71-aea4-d6c47fc431d0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_019f1a21-fc49-77e6-b124-f9aceff479cc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_us-gaap_LineOfCredit_019f1a21-fc49-77e6-b124-f9aceff479cc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_019f1a21-fc49-702d-8240-4319c65122b1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LettersOfCreditOutstandingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_019f1a21-fc49-702d-8240-4319c65122b1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_019f1a21-fc49-71b9-b789-4f314bb0788a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_019f1a21-fc49-71b9-b789-4f314bb0788a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019f1a21-fc49-7a67-9115-c47756e3f553" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019f1a21-fc49-7a67-9115-c47756e3f553" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019f1a21-fc49-7dff-83bf-67129a952bb3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019f1a21-fc49-7dff-83bf-67129a952bb3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_019f1a21-fc49-7450-8e7f-b43ed8f43f12" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_019f1a21-fc49-7450-8e7f-b43ed8f43f12" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd_019f1a21-fc49-7ff6-b02b-94605daf8f90" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd_019f1a21-fc49-7ff6-b02b-94605daf8f90" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfLinesOfCredit_019f1a21-fc49-7592-af97-c75e2c736b09" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromRepaymentsOfLinesOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfLinesOfCredit_019f1a21-fc49-7592-af97-c75e2c736b09" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019f1a21-fc49-7927-b50f-22a0188a6d17" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019f1a21-fc49-7927-b50f-22a0188a6d17" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_DebtCovenantTotalDebtRatioThreshold_019f1a21-fc49-7b27-b163-dbaece60dbbc" xlink:href="fcfs-20260630.xsd#fcfs_DebtCovenantTotalDebtRatioThreshold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_fcfs_DebtCovenantTotalDebtRatioThreshold_019f1a21-fc49-7b27-b163-dbaece60dbbc" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_DebtCovenantTotalDebtRatio_019f1a21-fc49-7672-8265-75a17a271802" xlink:href="fcfs-20260630.xsd#fcfs_DebtCovenantTotalDebtRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_fcfs_DebtCovenantTotalDebtRatio_019f1a21-fc49-7672-8265-75a17a271802" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialLiabilities_019f1a21-fc49-794c-b7a8-d8b1e7bace6e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialLiabilities_019f1a21-fc49-794c-b7a8-d8b1e7bace6e" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_BusinessCombinationRecognizedLiabilityAssumedNumberOfLoansAssumed_019f1a21-fc49-7684-9c15-6c59b2c9e0e4" xlink:href="fcfs-20260630.xsd#fcfs_BusinessCombinationRecognizedLiabilityAssumedNumberOfLoansAssumed"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_fcfs_BusinessCombinationRecognizedLiabilityAssumedNumberOfLoansAssumed_019f1a21-fc49-7684-9c15-6c59b2c9e0e4" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019f1a21-fc49-7019-b0f4-4703ed0a336c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019f1a21-fc49-7019-b0f4-4703ed0a336c" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_019f1a21-fc49-7100-811a-f662b04e6fc1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromLinesOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_019f1a21-fc49-7100-811a-f662b04e6fc1" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfDebt_019f9518-745d-746a-8d1b-b3ef5c647aaa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_us-gaap_RepaymentsOfDebt_019f9518-745d-746a-8d1b-b3ef5c647aaa" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_019f951a-c287-722b-8b2e-7b4e46ad68d8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_019f951a-c287-722b-8b2e-7b4e46ad68d8" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsGross_019fa443-ad6c-777c-99ae-5fed12270c49" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredFinanceCostsGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f1a21-fc49-75ad-93aa-36b5a94142f4" xlink:to="loc_us-gaap_DeferredFinanceCostsGross_019fa443-ad6c-777c-99ae-5fed12270c49" xlink:type="arc" order="17"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/CommitmentsandContingenciesDetails" xlink:type="simple" xlink:href="fcfs-20260630.xsd#CommitmentsandContingenciesDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/CommitmentsandContingenciesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeObligationsLineItems_019f1a21-fc49-7cb2-a271-418ccab08e6d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GuaranteeObligationsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_019f1a21-fc49-783c-8c96-1508ea492fc1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfGuaranteeObligationsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_019f1a21-fc49-7cb2-a271-418ccab08e6d" xlink:to="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_019f1a21-fc49-783c-8c96-1508ea492fc1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CurrencyAxis_019f1a21-fc49-784e-9222-b9c7b0547ead" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_CurrencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_019f1a21-fc49-783c-8c96-1508ea492fc1" xlink:to="loc_srt_CurrencyAxis_019f1a21-fc49-784e-9222-b9c7b0547ead" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_019f1a21-fc49-784e-9222-b9c7b0547ead_default" xlink:href="https://xbrl.sec.gov/currency/2026/currency-2026.xsd#currency_AllCurrenciesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CurrencyAxis_019f1a21-fc49-784e-9222-b9c7b0547ead" xlink:to="loc_currency_AllCurrenciesDomain_019f1a21-fc49-784e-9222-b9c7b0547ead_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_019f1a21-fc49-72fb-bf6a-3152511526fd" xlink:href="https://xbrl.sec.gov/currency/2026/currency-2026.xsd#currency_AllCurrenciesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CurrencyAxis_019f1a21-fc49-784e-9222-b9c7b0547ead" xlink:to="loc_currency_AllCurrenciesDomain_019f1a21-fc49-72fb-bf6a-3152511526fd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_XAU_019f1a21-fc49-7d1e-8d75-883741e03314" xlink:href="https://xbrl.sec.gov/currency/2026/currency-2026.xsd#currency_XAU"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_019f1a21-fc49-72fb-bf6a-3152511526fd" xlink:to="loc_currency_XAU_019f1a21-fc49-7d1e-8d75-883741e03314" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019f1a21-fc49-7c6b-982a-e65784b758e2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_019f1a21-fc49-783c-8c96-1508ea492fc1" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019f1a21-fc49-7c6b-982a-e65784b758e2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f1a21-fc49-7c6b-982a-e65784b758e2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019f1a21-fc49-7c6b-982a-e65784b758e2" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f1a21-fc49-7c6b-982a-e65784b758e2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f1a21-fc49-759c-b52d-e26193fc67f6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019f1a21-fc49-7c6b-982a-e65784b758e2" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f1a21-fc49-759c-b52d-e26193fc67f6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForwardContractsMember_019f1a21-fc49-7126-b05b-b46e65afa3fa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForwardContractsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f1a21-fc49-759c-b52d-e26193fc67f6" xlink:to="loc_us-gaap_ForwardContractsMember_019f1a21-fc49-7126-b05b-b46e65afa3fa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019f1a21-fc49-73b8-8792-892b07df1e49" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_019f1a21-fc49-783c-8c96-1508ea492fc1" xlink:to="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019f1a21-fc49-73b8-8792-892b07df1e49" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_019f1a21-fc49-73b8-8792-892b07df1e49_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019f1a21-fc49-73b8-8792-892b07df1e49" xlink:to="loc_us-gaap_LossContingencyNatureDomain_019f1a21-fc49-73b8-8792-892b07df1e49_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_019f1a21-fc49-75ef-bdd4-1a0d81a81e99" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019f1a21-fc49-73b8-8792-892b07df1e49" xlink:to="loc_us-gaap_LossContingencyNatureDomain_019f1a21-fc49-75ef-bdd4-1a0d81a81e99" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeOfIndebtednessOfOthersMember_019f1a21-fc49-7937-84ad-0db2a3a6292a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GuaranteeOfIndebtednessOfOthersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingencyNatureDomain_019f1a21-fc49-75ef-bdd4-1a0d81a81e99" xlink:to="loc_us-gaap_GuaranteeOfIndebtednessOfOthersMember_019f1a21-fc49-7937-84ad-0db2a3a6292a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_019f808e-dd4a-7793-b25b-e8358cab80d2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_019f1a21-fc49-783c-8c96-1508ea492fc1" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_019f808e-dd4a-7793-b25b-e8358cab80d2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f808e-dd4a-7793-b25b-e8358cab80d2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019f808e-dd4a-7793-b25b-e8358cab80d2" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f808e-dd4a-7793-b25b-e8358cab80d2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f808e-dd4a-7196-9fad-9caee4652c55" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019f808e-dd4a-7793-b25b-e8358cab80d2" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f808e-dd4a-7196-9fad-9caee4652c55" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_RamsdensPendingAcquisitionMember_019f808f-5c48-7266-8ab8-00c6686525e9" xlink:href="fcfs-20260630.xsd#fcfs_RamsdensPendingAcquisitionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019f808e-dd4a-7196-9fad-9caee4652c55" xlink:to="loc_fcfs_RamsdensPendingAcquisitionMember_019f808f-5c48-7266-8ab8-00c6686525e9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_019f8090-0763-795b-8240-6cb8cc2f920f" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StatementScenarioAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_019f1a21-fc49-783c-8c96-1508ea492fc1" xlink:to="loc_srt_StatementScenarioAxis_019f8090-0763-795b-8240-6cb8cc2f920f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_019f8090-0763-795b-8240-6cb8cc2f920f_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_019f8090-0763-795b-8240-6cb8cc2f920f" xlink:to="loc_srt_ScenarioUnspecifiedDomain_019f8090-0763-795b-8240-6cb8cc2f920f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_019f8090-0763-776b-b0d7-7c22efc736c9" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_019f8090-0763-795b-8240-6cb8cc2f920f" xlink:to="loc_srt_ScenarioUnspecifiedDomain_019f8090-0763-776b-b0d7-7c22efc736c9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_019f8090-2f5c-7956-91d5-defa08f39232" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ScenarioForecastMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_019f8090-0763-776b-b0d7-7c22efc736c9" xlink:to="loc_srt_ScenarioForecastMember_019f8090-2f5c-7956-91d5-defa08f39232" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsAxis_019f8098-1dbb-7774-aec0-5acfca74ddf1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_019f1a21-fc49-783c-8c96-1508ea492fc1" xlink:to="loc_us-gaap_DividendsAxis_019f8098-1dbb-7774-aec0-5acfca74ddf1" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsDomain_019f8098-1dbb-7774-aec0-5acfca74ddf1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DividendsAxis_019f8098-1dbb-7774-aec0-5acfca74ddf1" xlink:to="loc_us-gaap_DividendsDomain_019f8098-1dbb-7774-aec0-5acfca74ddf1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsDomain_019f8098-1dbb-7aac-a7d6-10951e8a8638" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DividendsAxis_019f8098-1dbb-7774-aec0-5acfca74ddf1" xlink:to="loc_us-gaap_DividendsDomain_019f8098-1dbb-7aac-a7d6-10951e8a8638" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_019f1a21-fc49-732e-accf-bdf9bfa09d35" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingencyEstimateOfPossibleLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_019f1a21-fc49-7cb2-a271-418ccab08e6d" xlink:to="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_019f1a21-fc49-732e-accf-bdf9bfa09d35" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_InvestmentContractWeight_019f1a21-fc49-7760-9251-4d167c7a7d68" xlink:href="fcfs-20260630.xsd#fcfs_InvestmentContractWeight"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_019f1a21-fc49-7cb2-a271-418ccab08e6d" xlink:to="loc_fcfs_InvestmentContractWeight_019f1a21-fc49-7760-9251-4d167c7a7d68" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAverageForwardPrice_019f1a21-fc49-7d75-b08a-32c6749795c8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAverageForwardPrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_019f1a21-fc49-7cb2-a271-418ccab08e6d" xlink:to="loc_us-gaap_DerivativeAverageForwardPrice_019f1a21-fc49-7d75-b08a-32c6749795c8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_019f808e-703c-7e04-9ca3-8b3e6a7a4da9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockAcquiredAverageCostPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_019f1a21-fc49-7cb2-a271-418ccab08e6d" xlink:to="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_019f808e-703c-7e04-9ca3-8b3e6a7a4da9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_019f8098-a2dd-7fdd-9693-66b48b375bbe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockDividendsPerShareDeclared"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_019f1a21-fc49-7cb2-a271-418ccab08e6d" xlink:to="loc_us-gaap_CommonStockDividendsPerShareDeclared_019f8098-a2dd-7fdd-9693-66b48b375bbe" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019f8099-74d7-740a-89c7-182f50766948" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationConsiderationTransferred1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_019f1a21-fc49-7cb2-a271-418ccab08e6d" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019f8099-74d7-740a-89c7-182f50766948" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyExchangeRateTranslation1_019f809b-1796-707e-be88-006722ee4000" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignCurrencyExchangeRateTranslation1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_019f1a21-fc49-7cb2-a271-418ccab08e6d" xlink:to="loc_us-gaap_ForeignCurrencyExchangeRateTranslation1_019f809b-1796-707e-be88-006722ee4000" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://ww2.firstcash.com/role/SegmentInformationDetails" xlink:type="simple" xlink:href="fcfs-20260630.xsd#SegmentInformationDetails"/>
  <link:definitionLink xlink:role="http://ww2.firstcash.com/role/SegmentInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_019f1a21-fc49-7671-91e4-0301c3461c95" xlink:href="fcfs-20260630.xsd#fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsTable_019f1a21-fc49-7f07-bd2f-ec70c53717dc" xlink:href="fcfs-20260630.xsd#fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_019f1a21-fc49-7671-91e4-0301c3461c95" xlink:to="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsTable_019f1a21-fc49-7f07-bd2f-ec70c53717dc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019f1a21-fc49-7938-9dc6-62816a03e1ec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsTable_019f1a21-fc49-7f07-bd2f-ec70c53717dc" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019f1a21-fc49-7938-9dc6-62816a03e1ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019f1a21-fc49-7938-9dc6-62816a03e1ec_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019f1a21-fc49-7938-9dc6-62816a03e1ec" xlink:to="loc_us-gaap_SegmentDomain_019f1a21-fc49-7938-9dc6-62816a03e1ec_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019f1a21-fc49-750f-9326-37a19eb5c102" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019f1a21-fc49-7938-9dc6-62816a03e1ec" xlink:to="loc_us-gaap_SegmentDomain_019f1a21-fc49-750f-9326-37a19eb5c102" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_USPawnSegmentMember_019f1a21-fc49-7ce6-9dbd-f97ddeab94fa" xlink:href="fcfs-20260630.xsd#fcfs_USPawnSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019f1a21-fc49-750f-9326-37a19eb5c102" xlink:to="loc_fcfs_USPawnSegmentMember_019f1a21-fc49-7ce6-9dbd-f97ddeab94fa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_LatinAmericaPawnSegmentMember_019f1a21-fc49-7e78-abb5-d2d6a69a40e4" xlink:href="fcfs-20260630.xsd#fcfs_LatinAmericaPawnSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019f1a21-fc49-750f-9326-37a19eb5c102" xlink:to="loc_fcfs_LatinAmericaPawnSegmentMember_019f1a21-fc49-7e78-abb5-d2d6a69a40e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_U.K.PawnMember_019f1a21-fc49-7b1b-924c-9734f1c3eed4" xlink:href="fcfs-20260630.xsd#fcfs_U.K.PawnMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019f1a21-fc49-750f-9326-37a19eb5c102" xlink:to="loc_fcfs_U.K.PawnMember_019f1a21-fc49-7b1b-924c-9734f1c3eed4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_RetailPOSPaymentSolutionsMember_019f1a21-fc49-7760-bcd6-e78a99eccfe5" xlink:href="fcfs-20260630.xsd#fcfs_RetailPOSPaymentSolutionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019f1a21-fc49-750f-9326-37a19eb5c102" xlink:to="loc_fcfs_RetailPOSPaymentSolutionsMember_019f1a21-fc49-7760-bcd6-e78a99eccfe5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019f1a21-fc49-7a28-a245-f326fbe3b54e" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsTable_019f1a21-fc49-7f07-bd2f-ec70c53717dc" xlink:to="loc_srt_StatementGeographicalAxis_019f1a21-fc49-7a28-a245-f326fbe3b54e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019f1a21-fc49-7a28-a245-f326fbe3b54e_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_019f1a21-fc49-7a28-a245-f326fbe3b54e" xlink:to="loc_srt_SegmentGeographicalDomain_019f1a21-fc49-7a28-a245-f326fbe3b54e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019f1a21-fc49-7d0c-bb8c-f88c95c7869b" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_019f1a21-fc49-7a28-a245-f326fbe3b54e" xlink:to="loc_srt_SegmentGeographicalDomain_019f1a21-fc49-7d0c-bb8c-f88c95c7869b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_019f1a21-fc49-720d-abd3-7b4805325425" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019f1a21-fc49-7d0c-bb8c-f88c95c7869b" xlink:to="loc_country_US_019f1a21-fc49-720d-abd3-7b4805325425" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LatinAmericaMember_019f1a21-fc49-71a0-aa4e-8a0d3e982901" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_LatinAmericaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019f1a21-fc49-7d0c-bb8c-f88c95c7869b" xlink:to="loc_srt_LatinAmericaMember_019f1a21-fc49-71a0-aa4e-8a0d3e982901" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_GB_019f1a21-fc49-7a12-946e-bf937cf39058" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_GB"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019f1a21-fc49-7d0c-bb8c-f88c95c7869b" xlink:to="loc_country_GB_019f1a21-fc49-7a12-946e-bf937cf39058" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_019f1a21-fc49-71f5-a1e8-e4c851bac214" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsTable_019f1a21-fc49-7f07-bd2f-ec70c53717dc" xlink:to="loc_srt_ConsolidationItemsAxis_019f1a21-fc49-71f5-a1e8-e4c851bac214" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019f1a21-fc49-71f5-a1e8-e4c851bac214_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_019f1a21-fc49-71f5-a1e8-e4c851bac214" xlink:to="loc_srt_ConsolidationItemsDomain_019f1a21-fc49-71f5-a1e8-e4c851bac214_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019f1a21-fc49-7fc5-be5d-d77ab42ab0f3" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_019f1a21-fc49-71f5-a1e8-e4c851bac214" xlink:to="loc_srt_ConsolidationItemsDomain_019f1a21-fc49-7fc5-be5d-d77ab42ab0f3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateNonSegmentMember_019f1a21-fc49-70ec-9bf0-281acf65ee16" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CorporateNonSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_019f1a21-fc49-7fc5-be5d-d77ab42ab0f3" xlink:to="loc_us-gaap_CorporateNonSegmentMember_019f1a21-fc49-70ec-9bf0-281acf65ee16" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_019f1a21-fc49-7cff-921c-974a645133a8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_019f1a21-fc49-7fc5-be5d-d77ab42ab0f3" xlink:to="loc_us-gaap_OperatingSegmentsMember_019f1a21-fc49-7cff-921c-974a645133a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_019f1a21-fc49-706c-a269-f58ffb789ebb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NumberOfReportableSegments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_019f1a21-fc49-7671-91e4-0301c3461c95" xlink:to="loc_us-gaap_NumberOfReportableSegments_019f1a21-fc49-706c-a269-f58ffb789ebb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesAbstract_019f1a21-fc49-7cea-9069-4091d376e2d2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenuesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_019f1a21-fc49-7671-91e4-0301c3461c95" xlink:to="loc_us-gaap_RevenuesAbstract_019f1a21-fc49-7cea-9069-4091d376e2d2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019f1a21-fc49-701b-b3d5-d2cd1363e164" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_019f1a21-fc49-7cea-9069-4091d376e2d2" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019f1a21-fc49-701b-b3d5-d2cd1363e164" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_PawnLoanFees_019f1a21-fc49-7a60-a083-6274c6b3ec19" xlink:href="fcfs-20260630.xsd#fcfs_PawnLoanFees"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_019f1a21-fc49-7cea-9069-4091d376e2d2" xlink:to="loc_fcfs_PawnLoanFees_019f1a21-fc49-7a60-a083-6274c6b3ec19" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_LeasedMerchandiseIncome_019f1a21-fc49-7650-91db-1a06a3bf61a6" xlink:href="fcfs-20260630.xsd#fcfs_LeasedMerchandiseIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_019f1a21-fc49-7cea-9069-4091d376e2d2" xlink:to="loc_fcfs_LeasedMerchandiseIncome_019f1a21-fc49-7650-91db-1a06a3bf61a6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndFeeIncomeLoansAndLeases_019f1a21-fc49-7c03-91f5-4f6cd78e9104" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestAndFeeIncomeLoansAndLeases"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_019f1a21-fc49-7cea-9069-4091d376e2d2" xlink:to="loc_us-gaap_InterestAndFeeIncomeLoansAndLeases_019f1a21-fc49-7c03-91f5-4f6cd78e9104" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_WholesaleScrapJewelryRevenue_019f1a21-fc49-7d57-9047-42baeef99296" xlink:href="fcfs-20260630.xsd#fcfs_WholesaleScrapJewelryRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_019f1a21-fc49-7cea-9069-4091d376e2d2" xlink:to="loc_fcfs_WholesaleScrapJewelryRevenue_019f1a21-fc49-7d57-9047-42baeef99296" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestIncomeOtherOperatingIncome_019f1a21-fc49-7a6e-bf43-ff45bbad548e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoninterestIncomeOtherOperatingIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_019f1a21-fc49-7cea-9069-4091d376e2d2" xlink:to="loc_us-gaap_NoninterestIncomeOtherOperatingIncome_019f1a21-fc49-7a6e-bf43-ff45bbad548e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019f1a21-fc49-744c-b696-98288f089bef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_019f1a21-fc49-7cea-9069-4091d376e2d2" xlink:to="loc_us-gaap_Revenues_019f1a21-fc49-744c-b696-98288f089bef" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenueAbstract_019f1a21-fc49-7d30-a16e-9adaab27f91f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfRevenueAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_019f1a21-fc49-7671-91e4-0301c3461c95" xlink:to="loc_us-gaap_CostOfRevenueAbstract_019f1a21-fc49-7d30-a16e-9adaab27f91f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_019f1a21-fc49-7461-bdb2-d96d5705d72a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostOfRevenueAbstract_019f1a21-fc49-7d30-a16e-9adaab27f91f" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_019f1a21-fc49-7461-bdb2-d96d5705d72a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_DepreciationOfLeasedMerchandise_019f1a21-fc49-754f-9c89-8c559ef025e6" xlink:href="fcfs-20260630.xsd#fcfs_DepreciationOfLeasedMerchandise"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostOfRevenueAbstract_019f1a21-fc49-7d30-a16e-9adaab27f91f" xlink:to="loc_fcfs_DepreciationOfLeasedMerchandise_019f1a21-fc49-754f-9c89-8c559ef025e6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseCreditLossExpenseReversal_019f1a21-fc49-7aa6-ad58-dbd6bd52d233" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetInvestmentInLeaseCreditLossExpenseReversal"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostOfRevenueAbstract_019f1a21-fc49-7d30-a16e-9adaab27f91f" xlink:to="loc_us-gaap_NetInvestmentInLeaseCreditLossExpenseReversal_019f1a21-fc49-7aa6-ad58-dbd6bd52d233" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForLoanLossesExpensed_019f1a21-fc49-7311-92a8-e5a054fc691d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProvisionForLoanLossesExpensed"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostOfRevenueAbstract_019f1a21-fc49-7d30-a16e-9adaab27f91f" xlink:to="loc_us-gaap_ProvisionForLoanLossesExpensed_019f1a21-fc49-7311-92a8-e5a054fc691d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_CostOfWholesaleScrapJewelrySold_019f1a21-fc49-7cae-8bbb-f70458da7dcb" xlink:href="fcfs-20260630.xsd#fcfs_CostOfWholesaleScrapJewelrySold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostOfRevenueAbstract_019f1a21-fc49-7d30-a16e-9adaab27f91f" xlink:to="loc_fcfs_CostOfWholesaleScrapJewelrySold_019f1a21-fc49-7cae-8bbb-f70458da7dcb" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCostOfOperatingRevenue_019f1a21-fc49-729e-adcf-f8fdd206ebc3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCostOfOperatingRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostOfRevenueAbstract_019f1a21-fc49-7d30-a16e-9adaab27f91f" xlink:to="loc_us-gaap_OtherCostOfOperatingRevenue_019f1a21-fc49-729e-adcf-f8fdd206ebc3" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_019f1a21-fc49-7a4b-b86a-35052e200cd3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostOfRevenueAbstract_019f1a21-fc49-7d30-a16e-9adaab27f91f" xlink:to="loc_us-gaap_CostOfRevenue_019f1a21-fc49-7a4b-b86a-35052e200cd3" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_019f1a21-fc49-7a65-a9d6-2d5ed512e887" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GrossProfit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_019f1a21-fc49-7671-91e4-0301c3461c95" xlink:to="loc_us-gaap_GrossProfit_019f1a21-fc49-7a65-a9d6-2d5ed512e887" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpensesAbstract_019f1a21-fc49-749f-b1b5-0bfd3d183de5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_019f1a21-fc49-7671-91e4-0301c3461c95" xlink:to="loc_us-gaap_OperatingExpensesAbstract_019f1a21-fc49-749f-b1b5-0bfd3d183de5" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingCostsAndExpenses_019f1a21-fc49-7fff-95b9-9a8360e29dcc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingCostsAndExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019f1a21-fc49-749f-b1b5-0bfd3d183de5" xlink:to="loc_us-gaap_OperatingCostsAndExpenses_019f1a21-fc49-7fff-95b9-9a8360e29dcc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_019f1a21-fc49-7d53-b5bb-3cf0a8df9ad6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019f1a21-fc49-749f-b1b5-0bfd3d183de5" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_019f1a21-fc49-7d53-b5bb-3cf0a8df9ad6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherDepreciationAndAmortization_019f1a21-fc49-758f-9d1f-7d06828baf81" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019f1a21-fc49-749f-b1b5-0bfd3d183de5" xlink:to="loc_us-gaap_OtherDepreciationAndAmortization_019f1a21-fc49-758f-9d1f-7d06828baf81" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseOperating_019f1a21-fc49-7a52-b291-1fc874bd7c68" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseOperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019f1a21-fc49-749f-b1b5-0bfd3d183de5" xlink:to="loc_us-gaap_InterestExpenseOperating_019f1a21-fc49-7a52-b291-1fc874bd7c68" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_019f1a21-fc49-7470-90f4-6cb5bb13c84d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019f1a21-fc49-749f-b1b5-0bfd3d183de5" xlink:to="loc_us-gaap_InvestmentIncomeInterest_019f1a21-fc49-7470-90f4-6cb5bb13c84d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_019f1a21-fc49-707b-bd90-f8318880d52e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019f1a21-fc49-749f-b1b5-0bfd3d183de5" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_019f1a21-fc49-707b-bd90-f8318880d52e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_BusinessCombinationAcquisitionAndIntegrationRelatedCosts_019f1a21-fc49-776e-b5ca-231ba4159216" xlink:href="fcfs-20260630.xsd#fcfs_BusinessCombinationAcquisitionAndIntegrationRelatedCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019f1a21-fc49-749f-b1b5-0bfd3d183de5" xlink:to="loc_fcfs_BusinessCombinationAcquisitionAndIntegrationRelatedCosts_019f1a21-fc49-776e-b5ca-231ba4159216" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_019f1a21-fc49-73da-b8ac-ab6fdcf61125" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019f1a21-fc49-749f-b1b5-0bfd3d183de5" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_019f1a21-fc49-73da-b8ac-ab6fdcf61125" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_019f1a21-fc49-7013-9be3-8031e0b76501" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019f1a21-fc49-749f-b1b5-0bfd3d183de5" xlink:to="loc_us-gaap_OperatingExpenses_019f1a21-fc49-7013-9be3-8031e0b76501" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019f1a21-fc49-7bc4-8e2a-801db275da01" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_019f1a21-fc49-7671-91e4-0301c3461c95" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019f1a21-fc49-7bc4-8e2a-801db275da01" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_PawnLoans_019f1a21-fc49-7e50-8882-e0d70a8507e1" xlink:href="fcfs-20260630.xsd#fcfs_PawnLoans"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_019f1a21-fc49-7671-91e4-0301c3461c95" xlink:to="loc_fcfs_PawnLoans_019f1a21-fc49-7e50-8882-e0d70a8507e1" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesAndLoansReceivableNetCurrent_019f1a21-fc49-7663-bffe-5a327c85d30e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NotesAndLoansReceivableNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_019f1a21-fc49-7671-91e4-0301c3461c95" xlink:to="loc_us-gaap_NotesAndLoansReceivableNetCurrent_019f1a21-fc49-7663-bffe-5a327c85d30e" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019f1a21-fc49-76eb-9a18-2a0eb60e4827" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_019f1a21-fc49-7671-91e4-0301c3461c95" xlink:to="loc_us-gaap_InventoryNet_019f1a21-fc49-76eb-9a18-2a0eb60e4827" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_fcfs_LeasedMerchandiseNet_019f1a21-fc49-7e61-9e0c-438d57ef0c14" xlink:href="fcfs-20260630.xsd#fcfs_LeasedMerchandiseNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_019f1a21-fc49-7671-91e4-0301c3461c95" xlink:to="loc_fcfs_LeasedMerchandiseNet_019f1a21-fc49-7e61-9e0c-438d57ef0c14" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019f1a21-fc49-77d0-baee-4df49c233582" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_019f1a21-fc49-7671-91e4-0301c3461c95" xlink:to="loc_us-gaap_Goodwill_019f1a21-fc49-77d0-baee-4df49c233582" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019f1a21-fc49-75b6-a1ad-150d1d188913" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_fcfs_ScheduleOfRevenuesFromExternalCustomersAndAssetsLineItems_019f1a21-fc49-7671-91e4-0301c3461c95" xlink:to="loc_us-gaap_Assets_019f1a21-fc49-75b6-a1ad-150d1d188913" xlink:type="arc" order="11"/>
  </link:definitionLink>
</link:linkbase>
