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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:01a0b4c9-55c8-7a9f-83b9-180d08b026dd,g:54701715-2b47-404e-8f74-8d35699b5b7b-->
<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://selectquote.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS" xlink:type="simple" xlink:href="slqt-20260930.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_01a0b4c9-591a-716b-b0b0-57303cde7b77" 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_01a0b4c9-591a-7f66-94c8-2920af873af2" 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_01a0b4c9-591a-716b-b0b0-57303cde7b77" xlink:to="loc_us-gaap_StatementTable_01a0b4c9-591a-7f66-94c8-2920af873af2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_01a0b4c9-591a-7ad7-9a33-9946d8304b86" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_01a0b4c9-591a-7f66-94c8-2920af873af2" xlink:to="loc_srt_ProductOrServiceAxis_01a0b4c9-591a-7ad7-9a33-9946d8304b86" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_01a0b4c9-591a-7ad7-9a33-9946d8304b86_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_01a0b4c9-591a-7ad7-9a33-9946d8304b86" xlink:to="loc_srt_ProductsAndServicesDomain_01a0b4c9-591a-7ad7-9a33-9946d8304b86_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_01a0b4c9-591a-7d77-bec9-956332ca6b4b" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_01a0b4c9-591a-7ad7-9a33-9946d8304b86" xlink:to="loc_srt_ProductsAndServicesDomain_01a0b4c9-591a-7d77-bec9-956332ca6b4b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServiceMember_01a0b4c9-591a-7033-a07a-4b20e0926f25" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_01a0b4c9-591a-7d77-bec9-956332ca6b4b" xlink:to="loc_us-gaap_ServiceMember_01a0b4c9-591a-7033-a07a-4b20e0926f25" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PharmacyMember_01a0b4c9-591a-79f0-ae49-0e1e2b8302db" xlink:href="slqt-20260930.xsd#slqt_PharmacyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_01a0b4c9-591a-7d77-bec9-956332ca6b4b" xlink:to="loc_slqt_PharmacyMember_01a0b4c9-591a-79f0-ae49-0e1e2b8302db" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesAbstract_01a0b4c9-591a-79b5-8119-8ec3cfdbbb42" 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_us-gaap_StatementLineItems_01a0b4c9-591a-716b-b0b0-57303cde7b77" xlink:to="loc_us-gaap_RevenuesAbstract_01a0b4c9-591a-79b5-8119-8ec3cfdbbb42" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_01a0b4c9-591a-7acf-8564-c21dc77a18eb" 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_01a0b4c9-591a-79b5-8119-8ec3cfdbbb42" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_01a0b4c9-591a-7acf-8564-c21dc77a18eb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingCostsAndExpensesAbstract_01a0b4c9-591a-75c8-a067-56d14524a929" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingCostsAndExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-716b-b0b0-57303cde7b77" xlink:to="loc_us-gaap_OperatingCostsAndExpensesAbstract_01a0b4c9-591a-75c8-a067-56d14524a929" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_CostOfSales_01a0b4c9-591a-77e4-a75e-ca0725254478" xlink:href="slqt-20260930.xsd#slqt_CostOfSales"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingCostsAndExpensesAbstract_01a0b4c9-591a-75c8-a067-56d14524a929" xlink:to="loc_slqt_CostOfSales_01a0b4c9-591a-77e4-a75e-ca0725254478" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_01a0b4c9-591a-763d-b4af-256905a3ba3c" 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_OperatingCostsAndExpensesAbstract_01a0b4c9-591a-75c8-a067-56d14524a929" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_01a0b4c9-591a-763d-b4af-256905a3ba3c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketingAndAdvertisingExpense_01a0b4c9-591a-7983-ac92-b047ed76f131" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MarketingAndAdvertisingExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingCostsAndExpensesAbstract_01a0b4c9-591a-75c8-a067-56d14524a929" xlink:to="loc_us-gaap_MarketingAndAdvertisingExpense_01a0b4c9-591a-7983-ac92-b047ed76f131" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_01a0b4c9-591a-7f48-8d56-277dd8e19ad6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingCostsAndExpensesAbstract_01a0b4c9-591a-75c8-a067-56d14524a929" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_01a0b4c9-591a-7f48-8d56-277dd8e19ad6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InformationTechnologyAndDataProcessing_01a0b4c9-591a-7275-9ef0-a654f5c60109" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InformationTechnologyAndDataProcessing"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingCostsAndExpensesAbstract_01a0b4c9-591a-75c8-a067-56d14524a929" xlink:to="loc_us-gaap_InformationTechnologyAndDataProcessing_01a0b4c9-591a-7275-9ef0-a654f5c60109" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_01a0b4c9-591a-74d9-b8d7-8e7f73621d0d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostsAndExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingCostsAndExpensesAbstract_01a0b4c9-591a-75c8-a067-56d14524a929" xlink:to="loc_us-gaap_CostsAndExpenses_01a0b4c9-591a-74d9-b8d7-8e7f73621d0d" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_01a0b4c9-591a-7672-8252-01a781f33537" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-716b-b0b0-57303cde7b77" xlink:to="loc_us-gaap_OperatingIncomeLoss_01a0b4c9-591a-7672-8252-01a781f33537" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_01a0b4c9-591a-7b49-9194-e21ffce1321a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-716b-b0b0-57303cde7b77" xlink:to="loc_us-gaap_InterestExpenseNonoperating_01a0b4c9-591a-7b49-9194-e21ffce1321a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_01a0b4c9-591a-7261-82aa-0404bb548ddc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-716b-b0b0-57303cde7b77" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_01a0b4c9-591a-7261-82aa-0404bb548ddc" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_01a0b4c9-591a-741b-9fd2-507bdaf23ebd" 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_StatementLineItems_01a0b4c9-591a-716b-b0b0-57303cde7b77" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_01a0b4c9-591a-741b-9fd2-507bdaf23ebd" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_01a0b4c9-591a-751f-acc8-c715983c6d83" 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_us-gaap_StatementLineItems_01a0b4c9-591a-716b-b0b0-57303cde7b77" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_01a0b4c9-591a-751f-acc8-c715983c6d83" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_01a0b4c9-591a-7c23-894e-819e0ff103da" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-716b-b0b0-57303cde7b77" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_01a0b4c9-591a-7c23-894e-819e0ff103da" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_01a0b4c9-591a-7bbc-9a5c-7a46ae49f103" 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_StatementLineItems_01a0b4c9-591a-716b-b0b0-57303cde7b77" xlink:to="loc_us-gaap_NetIncomeLoss_01a0b4c9-591a-7bbc-9a5c-7a46ae49f103" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendsIncomeStatementImpact_01a0b4c9-591a-7907-bb23-8dab1d476c70" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockDividendsIncomeStatementImpact"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-716b-b0b0-57303cde7b77" xlink:to="loc_us-gaap_PreferredStockDividendsIncomeStatementImpact_01a0b4c9-591a-7907-bb23-8dab1d476c70" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_01a0b4c9-591a-7698-8e55-cc3cddef8742" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-716b-b0b0-57303cde7b77" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_01a0b4c9-591a-7698-8e55-cc3cddef8742" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_01a0b4c9-591a-7cc0-b5c2-4fdc545f3d0b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-716b-b0b0-57303cde7b77" xlink:to="loc_us-gaap_EarningsPerShareAbstract_01a0b4c9-591a-7cc0-b5c2-4fdc545f3d0b" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_01a0b4c9-591a-7b60-ac0a-abee953dd0b5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_01a0b4c9-591a-7cc0-b5c2-4fdc545f3d0b" xlink:to="loc_us-gaap_EarningsPerShareBasic_01a0b4c9-591a-7b60-ac0a-abee953dd0b5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_01a0b4c9-591a-7ca1-9bc2-922c046e05cf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_01a0b4c9-591a-7cc0-b5c2-4fdc545f3d0b" xlink:to="loc_us-gaap_EarningsPerShareDiluted_01a0b4c9-591a-7ca1-9bc2-922c046e05cf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasicOtherDisclosuresAbstract_01a0b4c9-591a-758e-9445-17fed4009f48" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareBasicOtherDisclosuresAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-716b-b0b0-57303cde7b77" xlink:to="loc_us-gaap_EarningsPerShareBasicOtherDisclosuresAbstract_01a0b4c9-591a-758e-9445-17fed4009f48" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_01a0b4c9-591a-7edf-9fc0-ff8d97fa9b54" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicOtherDisclosuresAbstract_01a0b4c9-591a-758e-9445-17fed4009f48" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_01a0b4c9-591a-7edf-9fc0-ff8d97fa9b54" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_01a0b4c9-591a-79f6-b8b3-02b86f316015" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicOtherDisclosuresAbstract_01a0b4c9-591a-758e-9445-17fed4009f48" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_01a0b4c9-591a-79f6-b8b3-02b86f316015" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITY" xlink:type="simple" xlink:href="slqt-20260930.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITY"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITY" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_01a0b4c9-591a-7d5a-b506-cdab2093bb2d" 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_01a0b4c9-591a-73ef-8b01-4d77da3c787a" 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_01a0b4c9-591a-7d5a-b506-cdab2093bb2d" xlink:to="loc_us-gaap_StatementTable_01a0b4c9-591a-73ef-8b01-4d77da3c787a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_01a0b4c9-591a-7d9a-8063-d272e675d97a" 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_01a0b4c9-591a-73ef-8b01-4d77da3c787a" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_01a0b4c9-591a-7d9a-8063-d272e675d97a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_01a0b4c9-591a-7d9a-8063-d272e675d97a_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_01a0b4c9-591a-7d9a-8063-d272e675d97a" xlink:to="loc_us-gaap_EquityComponentDomain_01a0b4c9-591a-7d9a-8063-d272e675d97a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_01a0b4c9-591a-7c7c-abc5-fd02d3c567d6" 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_01a0b4c9-591a-7d9a-8063-d272e675d97a" xlink:to="loc_us-gaap_EquityComponentDomain_01a0b4c9-591a-7c7c-abc5-fd02d3c567d6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_01a0b4c9-591a-7c6e-8712-33b6dbe746d9" 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_01a0b4c9-591a-7c7c-abc5-fd02d3c567d6" xlink:to="loc_us-gaap_CommonStockMember_01a0b4c9-591a-7c6e-8712-33b6dbe746d9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_01a0b4c9-591a-7033-9601-a665a2aaa023" 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_01a0b4c9-591a-7c7c-abc5-fd02d3c567d6" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_01a0b4c9-591a-7033-9601-a665a2aaa023" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_01a0b4c9-591a-7ada-9676-f455205dda7d" 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_01a0b4c9-591a-7c7c-abc5-fd02d3c567d6" xlink:to="loc_us-gaap_RetainedEarningsMember_01a0b4c9-591a-7ada-9676-f455205dda7d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_01a0b4c9-591a-7edd-a46d-abd15f1f5951" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_01a0b4c9-591a-73ef-8b01-4d77da3c787a" xlink:to="loc_us-gaap_StatementClassOfStockAxis_01a0b4c9-591a-7edd-a46d-abd15f1f5951" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a0b4c9-591a-7edd-a46d-abd15f1f5951_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a0b4c9-591a-7edd-a46d-abd15f1f5951" xlink:to="loc_us-gaap_ClassOfStockDomain_01a0b4c9-591a-7edd-a46d-abd15f1f5951_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a0b4c9-591a-70f3-9df6-09ced27f749e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a0b4c9-591a-7edd-a46d-abd15f1f5951" xlink:to="loc_us-gaap_ClassOfStockDomain_01a0b4c9-591a-70f3-9df6-09ced27f749e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_01a0b4c9-591a-7424-88d8-df38fdc17996" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_01a0b4c9-591a-70f3-9df6-09ced27f749e" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_01a0b4c9-591a-7424-88d8-df38fdc17996" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_01a0b4c9-591a-789e-adf3-ce656d5507de" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-7d5a-b506-cdab2093bb2d" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_01a0b4c9-591a-789e-adf3-ce656d5507de" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_01a0b4c9-591a-722c-bb55-0b79a84b3305" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-7d5a-b506-cdab2093bb2d" xlink:to="loc_us-gaap_StockholdersEquity_01a0b4c9-591a-722c-bb55-0b79a84b3305" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_01a0b4c9-591a-79f0-8952-9ff7caf093b5" 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_StatementLineItems_01a0b4c9-591a-7d5a-b506-cdab2093bb2d" xlink:to="loc_us-gaap_NetIncomeLoss_01a0b4c9-591a-79f0-8952-9ff7caf093b5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_01a0b4c9-591a-7345-90dd-7298aa2824c8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-7d5a-b506-cdab2093bb2d" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_01a0b4c9-591a-7345-90dd-7298aa2824c8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_01a0b4c9-591a-706a-88c7-99c21c084f8c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-7d5a-b506-cdab2093bb2d" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_01a0b4c9-591a-706a-88c7-99c21c084f8c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockSharesIssuedNetOfSharesForTaxWithholdings_01a0b4c9-591a-7b53-9715-860d61b40e8c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockSharesIssuedNetOfSharesForTaxWithholdings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-7d5a-b506-cdab2093bb2d" xlink:to="loc_us-gaap_RestrictedStockSharesIssuedNetOfSharesForTaxWithholdings_01a0b4c9-591a-7b53-9715-860d61b40e8c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockValueSharesIssuedNetOfTaxWithholdings_01a0b4c9-591a-70c7-b504-ef40abb4600d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockValueSharesIssuedNetOfTaxWithholdings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-7d5a-b506-cdab2093bb2d" xlink:to="loc_us-gaap_RestrictedStockValueSharesIssuedNetOfTaxWithholdings_01a0b4c9-591a-70c7-b504-ef40abb4600d" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions_01a0b4c9-591a-724b-9974-f5a990f4108c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-7d5a-b506-cdab2093bb2d" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions_01a0b4c9-591a-724b-9974-f5a990f4108c" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockAccretionOfRedemptionDiscount_01a0b4c9-591a-785d-b973-5f5bd1c49fd8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockAccretionOfRedemptionDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-7d5a-b506-cdab2093bb2d" xlink:to="loc_us-gaap_PreferredStockAccretionOfRedemptionDiscount_01a0b4c9-591a-785d-b973-5f5bd1c49fd8" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalDividendsInExcessOfRetainedEarnings_01a0b4c9-591a-7668-8010-df956533ece8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalDividendsInExcessOfRetainedEarnings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_01a0b4c9-591a-7d5a-b506-cdab2093bb2d" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalDividendsInExcessOfRetainedEarnings_01a0b4c9-591a-7668-8010-df956533ece8" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_01a0b4c9-591a-753b-b8c6-282bb44af319" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_01a0b4c9-591a-7843-9219-fa2d33e10e66" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/REVENUESFROMCONTRACTSWITHCUSTOMERSScheduleofDisaggregationofRevenueDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#REVENUESFROMCONTRACTSWITHCUSTOMERSScheduleofDisaggregationofRevenueDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/REVENUESFROMCONTRACTSWITHCUSTOMERSScheduleofDisaggregationofRevenueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_01a0b4c9-59c7-731f-a6ea-d2171c76e0e0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_01a0b4c9-59c7-7d08-b9c4-3e63ee4a1e1e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_01a0b4c9-59c7-731f-a6ea-d2171c76e0e0" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_01a0b4c9-59c7-7d08-b9c4-3e63ee4a1e1e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_01a0b4c9-59c7-7bf1-9ecb-1ebbaf331ff6" 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_us-gaap_DisaggregationOfRevenueTable_01a0b4c9-59c7-7d08-b9c4-3e63ee4a1e1e" xlink:to="loc_srt_ConsolidationItemsAxis_01a0b4c9-59c7-7bf1-9ecb-1ebbaf331ff6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_01a0b4c9-59c7-7bf1-9ecb-1ebbaf331ff6_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_01a0b4c9-59c7-7bf1-9ecb-1ebbaf331ff6" xlink:to="loc_srt_ConsolidationItemsDomain_01a0b4c9-59c7-7bf1-9ecb-1ebbaf331ff6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_01a0b4c9-59c7-7747-af46-1d52e5c07881" 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_01a0b4c9-59c7-7bf1-9ecb-1ebbaf331ff6" xlink:to="loc_srt_ConsolidationItemsDomain_01a0b4c9-59c7-7747-af46-1d52e5c07881" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_01a0b4c9-59c7-7f9d-b310-bcd800e28fa8" 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_01a0b4c9-59c7-7747-af46-1d52e5c07881" xlink:to="loc_us-gaap_OperatingSegmentsMember_01a0b4c9-59c7-7f9d-b310-bcd800e28fa8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntersegmentEliminationMember_01a0b4c9-59c7-7fa5-836b-17b356e8bb92" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntersegmentEliminationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_01a0b4c9-59c7-7747-af46-1d52e5c07881" xlink:to="loc_us-gaap_IntersegmentEliminationMember_01a0b4c9-59c7-7fa5-836b-17b356e8bb92" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_01a0b4c9-59c7-76ce-ba55-25bd20a86c42" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_01a0b4c9-59c7-7d08-b9c4-3e63ee4a1e1e" xlink:to="loc_srt_ProductOrServiceAxis_01a0b4c9-59c7-76ce-ba55-25bd20a86c42" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_01a0b4c9-59c7-76ce-ba55-25bd20a86c42_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_01a0b4c9-59c7-76ce-ba55-25bd20a86c42" xlink:to="loc_srt_ProductsAndServicesDomain_01a0b4c9-59c7-76ce-ba55-25bd20a86c42_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_01a0b4c9-59c7-7785-a3d1-888fd7b29a9b" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_01a0b4c9-59c7-76ce-ba55-25bd20a86c42" xlink:to="loc_srt_ProductsAndServicesDomain_01a0b4c9-59c7-7785-a3d1-888fd7b29a9b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_MedicareAdvantageMember_01a0b4c9-59c7-7023-bd64-5a76b0e0a81b" xlink:href="slqt-20260930.xsd#slqt_MedicareAdvantageMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_01a0b4c9-59c7-7785-a3d1-888fd7b29a9b" xlink:to="loc_slqt_MedicareAdvantageMember_01a0b4c9-59c7-7023-bd64-5a76b0e0a81b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_OtherSeniorMember_01a0b4c9-59c7-75b9-8df7-fb49eaba882d" xlink:href="slqt-20260930.xsd#slqt_OtherSeniorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_01a0b4c9-59c7-7785-a3d1-888fd7b29a9b" xlink:to="loc_slqt_OtherSeniorMember_01a0b4c9-59c7-75b9-8df7-fb49eaba882d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductAndServiceOtherMember_01a0b4c9-59c7-7364-817c-e7d2c71814e6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProductAndServiceOtherMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_01a0b4c9-59c7-7785-a3d1-888fd7b29a9b" xlink:to="loc_us-gaap_ProductAndServiceOtherMember_01a0b4c9-59c7-7364-817c-e7d2c71814e6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PharmacyMember_01a0b4c9-59c7-7878-8903-c5806b2c9425" xlink:href="slqt-20260930.xsd#slqt_PharmacyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_01a0b4c9-59c7-7785-a3d1-888fd7b29a9b" xlink:to="loc_slqt_PharmacyMember_01a0b4c9-59c7-7878-8903-c5806b2c9425" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_TermMember_01a0b4c9-59c7-7f55-a05e-a143365402a6" xlink:href="slqt-20260930.xsd#slqt_TermMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_01a0b4c9-59c7-7785-a3d1-888fd7b29a9b" xlink:to="loc_slqt_TermMember_01a0b4c9-59c7-7f55-a05e-a143365402a6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_FinalExpenseMember_01a0b4c9-59c7-7c0d-bdac-0c886a83d4a8" xlink:href="slqt-20260930.xsd#slqt_FinalExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_01a0b4c9-59c7-7785-a3d1-888fd7b29a9b" xlink:to="loc_slqt_FinalExpenseMember_01a0b4c9-59c7-7c0d-bdac-0c886a83d4a8" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServiceMember_01a0b4c9-59c7-7fdb-8549-1ce85581d459" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_01a0b4c9-59c7-7785-a3d1-888fd7b29a9b" xlink:to="loc_us-gaap_ServiceMember_01a0b4c9-59c7-7fdb-8549-1ce85581d459" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_01a0b4c9-59c7-719e-87d7-57f1dacbc52b" 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_us-gaap_DisaggregationOfRevenueTable_01a0b4c9-59c7-7d08-b9c4-3e63ee4a1e1e" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_01a0b4c9-59c7-719e-87d7-57f1dacbc52b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_01a0b4c9-59c7-719e-87d7-57f1dacbc52b_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_01a0b4c9-59c7-719e-87d7-57f1dacbc52b" xlink:to="loc_us-gaap_SegmentDomain_01a0b4c9-59c7-719e-87d7-57f1dacbc52b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_01a0b4c9-59c7-7b47-b411-fc25c04672fd" 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_01a0b4c9-59c7-719e-87d7-57f1dacbc52b" xlink:to="loc_us-gaap_SegmentDomain_01a0b4c9-59c7-7b47-b411-fc25c04672fd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorSegmentMember_01a0b4c9-59c7-73aa-abff-de51e3ea17a5" xlink:href="slqt-20260930.xsd#slqt_SeniorSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_01a0b4c9-59c7-7b47-b411-fc25c04672fd" xlink:to="loc_slqt_SeniorSegmentMember_01a0b4c9-59c7-73aa-abff-de51e3ea17a5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_HealthcareServicesSegmentMember_01a0b4c9-59c7-70f7-90fc-0ab4e2694566" xlink:href="slqt-20260930.xsd#slqt_HealthcareServicesSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_01a0b4c9-59c7-7b47-b411-fc25c04672fd" xlink:to="loc_slqt_HealthcareServicesSegmentMember_01a0b4c9-59c7-70f7-90fc-0ab4e2694566" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_LifeSegmentMember_01a0b4c9-59c7-7f84-9ee5-ec09608414eb" xlink:href="slqt-20260930.xsd#slqt_LifeSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_01a0b4c9-59c7-7b47-b411-fc25c04672fd" xlink:to="loc_slqt_LifeSegmentMember_01a0b4c9-59c7-7f84-9ee5-ec09608414eb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_AutoHomeSegmentMember_01a0b4c9-59c7-722b-8271-5bc94fd890fb" xlink:href="slqt-20260930.xsd#slqt_AutoHomeSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_01a0b4c9-59c7-7b47-b411-fc25c04672fd" xlink:to="loc_slqt_AutoHomeSegmentMember_01a0b4c9-59c7-722b-8271-5bc94fd890fb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_AllOtherRevenueMember_01a0b4c9-59c7-7aad-aa0b-7347fe4d1f97" xlink:href="slqt-20260930.xsd#slqt_AllOtherRevenueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_01a0b4c9-59c7-7b47-b411-fc25c04672fd" xlink:to="loc_slqt_AllOtherRevenueMember_01a0b4c9-59c7-7aad-aa0b-7347fe4d1f97" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_01a0b4c9-59c7-70e9-9efd-11413f12d120" 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_DisaggregationOfRevenueLineItems_01a0b4c9-59c7-731f-a6ea-d2171c76e0e0" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_01a0b4c9-59c7-70e9-9efd-11413f12d120" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/REVENUESFROMCONTRACTSWITHCUSTOMERSNarrativeDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#REVENUESFROMCONTRACTSWITHCUSTOMERSNarrativeDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/REVENUESFROMCONTRACTSWITHCUSTOMERSNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_01a0b4c9-59c7-7852-9c8f-5bcb14d1f665" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_01a0b4c9-59c7-729c-b8ad-154ca61ada40" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_01a0b4c9-59c7-7852-9c8f-5bcb14d1f665" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_01a0b4c9-59c7-729c-b8ad-154ca61ada40" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_01a0b4c9-59c7-77ca-9c2c-95189a1948be" 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_us-gaap_DisaggregationOfRevenueTable_01a0b4c9-59c7-729c-b8ad-154ca61ada40" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_01a0b4c9-59c7-77ca-9c2c-95189a1948be" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_01a0b4c9-59c7-77ca-9c2c-95189a1948be_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_01a0b4c9-59c7-77ca-9c2c-95189a1948be" xlink:to="loc_us-gaap_SegmentDomain_01a0b4c9-59c7-77ca-9c2c-95189a1948be_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_01a0b4c9-59c7-7e6f-b229-6894eec96224" 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_01a0b4c9-59c7-77ca-9c2c-95189a1948be" xlink:to="loc_us-gaap_SegmentDomain_01a0b4c9-59c7-7e6f-b229-6894eec96224" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorSegmentMember_01a0b4c9-59c7-77d1-b931-9692e5143f43" xlink:href="slqt-20260930.xsd#slqt_SeniorSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_01a0b4c9-59c7-7e6f-b229-6894eec96224" xlink:to="loc_slqt_SeniorSegmentMember_01a0b4c9-59c7-77d1-b931-9692e5143f43" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_AutoHomeSegmentMember_01a0b4c9-59c7-70a4-a7b2-a51b9afc5a9a" xlink:href="slqt-20260930.xsd#slqt_AutoHomeSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_01a0b4c9-59c7-7e6f-b229-6894eec96224" xlink:to="loc_slqt_AutoHomeSegmentMember_01a0b4c9-59c7-70a4-a7b2-a51b9afc5a9a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice_01a0b4c9-59c7-7b37-bd6d-3b25f484d98c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_01a0b4c9-59c7-7852-9c8f-5bcb14d1f665" xlink:to="loc_us-gaap_ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice_01a0b4c9-59c7-7b37-bd6d-3b25f484d98c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ContractWithCustomerAssetPositiveAdjustment_01a0b4c9-59c7-75fe-87c7-9e6b9357a12f" xlink:href="slqt-20260930.xsd#slqt_ContractWithCustomerAssetPositiveAdjustment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_01a0b4c9-59c7-7852-9c8f-5bcb14d1f665" xlink:to="loc_slqt_ContractWithCustomerAssetPositiveAdjustment_01a0b4c9-59c7-75fe-87c7-9e6b9357a12f" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/PROPERTYANDEQUIPMENTNETScheduleofPropertyandEquipmentDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#PROPERTYANDEQUIPMENTNETScheduleofPropertyandEquipmentDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/PROPERTYANDEQUIPMENTNETScheduleofPropertyandEquipmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_01a0b4c9-59c7-7f80-8e40-9ef8f1d9f3fa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_01a0b4c9-59c7-73b9-9e38-def251c73c5c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_01a0b4c9-59c7-7f80-8e40-9ef8f1d9f3fa" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_01a0b4c9-59c7-73b9-9e38-def251c73c5c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_01a0b4c9-59c7-756d-b65b-dae82eea8473" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_01a0b4c9-59c7-73b9-9e38-def251c73c5c" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_01a0b4c9-59c7-756d-b65b-dae82eea8473" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_01a0b4c9-59c7-756d-b65b-dae82eea8473_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_01a0b4c9-59c7-756d-b65b-dae82eea8473" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_01a0b4c9-59c7-756d-b65b-dae82eea8473_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_01a0b4c9-59c7-7290-bd15-d3e1fa11cd69" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_01a0b4c9-59c7-756d-b65b-dae82eea8473" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_01a0b4c9-59c7-7290-bd15-d3e1fa11cd69" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComputerEquipmentMember_01a0b4c9-59c7-75a5-8994-a5db71ca0c51" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComputerEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_01a0b4c9-59c7-7290-bd15-d3e1fa11cd69" xlink:to="loc_us-gaap_ComputerEquipmentMember_01a0b4c9-59c7-75a5-8994-a5db71ca0c51" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquipmentMember_01a0b4c9-59c7-77b1-a87c-448779d000f3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_01a0b4c9-59c7-7290-bd15-d3e1fa11cd69" xlink:to="loc_us-gaap_EquipmentMember_01a0b4c9-59c7-77b1-a87c-448779d000f3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseholdsAndLeaseholdImprovementsMember_01a0b4c9-59c7-7954-92b9-4a55110af3c0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LeaseholdsAndLeaseholdImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_01a0b4c9-59c7-7290-bd15-d3e1fa11cd69" xlink:to="loc_us-gaap_LeaseholdsAndLeaseholdImprovementsMember_01a0b4c9-59c7-7954-92b9-4a55110af3c0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_01a0b4c9-59c7-770b-acf2-72d4ab6650b8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FurnitureAndFixturesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_01a0b4c9-59c7-7290-bd15-d3e1fa11cd69" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_01a0b4c9-59c7-770b-acf2-72d4ab6650b8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressMember_01a0b4c9-59c7-719b-9637-1bc6768e6bee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConstructionInProgressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_01a0b4c9-59c7-7290-bd15-d3e1fa11cd69" xlink:to="loc_us-gaap_ConstructionInProgressMember_01a0b4c9-59c7-719b-9637-1bc6768e6bee" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_01a0b4c9-59c7-7d72-9716-adc06c1ac9b8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_01a0b4c9-59c7-7f80-8e40-9ef8f1d9f3fa" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_01a0b4c9-59c7-7d72-9716-adc06c1ac9b8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_01a0b4c9-59c7-7310-8e26-afb8a35c67cd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_01a0b4c9-59c7-7f80-8e40-9ef8f1d9f3fa" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_01a0b4c9-59c7-7310-8e26-afb8a35c67cd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_01a0b4c9-59c7-7d4d-ad14-9c7e7b1e08db" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_01a0b4c9-59c7-7f80-8e40-9ef8f1d9f3fa" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_01a0b4c9-59c7-7d4d-ad14-9c7e7b1e08db" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_01a0b4c9-59c7-7725-99ed-be96ed983811" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_01a0b4c9-59c7-7f80-8e40-9ef8f1d9f3fa" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_01a0b4c9-59c7-7725-99ed-be96ed983811" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentDisposals_01a0b4c9-59c7-7b7d-a88b-36403cfa0561" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentDisposals"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_01a0b4c9-59c7-7f80-8e40-9ef8f1d9f3fa" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentDisposals_01a0b4c9-59c7-7b7d-a88b-36403cfa0561" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationSaleOfPropertyPlantAndEquipment1_01a18976-9f69-7f1d-a9cc-7518dad0fe9b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationSaleOfPropertyPlantAndEquipment1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_01a0b4c9-59c7-7f80-8e40-9ef8f1d9f3fa" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationSaleOfPropertyPlantAndEquipment1_01a18976-9f69-7f1d-a9cc-7518dad0fe9b" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDispositionOfAssets1_01a1426e-8749-7303-8638-d9f5d1ad8471" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnDispositionOfAssets1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_01a0b4c9-59c7-7f80-8e40-9ef8f1d9f3fa" xlink:to="loc_us-gaap_GainLossOnDispositionOfAssets1_01a1426e-8749-7303-8638-d9f5d1ad8471" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/SOFTWARENETScheduleofCapitalizedSoftwareDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#SOFTWARENETScheduleofCapitalizedSoftwareDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/SOFTWARENETScheduleofCapitalizedSoftwareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a0b4c9-59c7-7d7b-a3ee-a1fc4b8878c4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a0b4c9-59c7-7b49-a619-c5c1b4adc62a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a0b4c9-59c7-7d7b-a3ee-a1fc4b8878c4" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a0b4c9-59c7-7b49-a619-c5c1b4adc62a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a0b4c9-59c7-7ecb-aa7f-746a8bf16da4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a0b4c9-59c7-7b49-a619-c5c1b4adc62a" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a0b4c9-59c7-7ecb-aa7f-746a8bf16da4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7ecb-aa7f-746a8bf16da4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a0b4c9-59c7-7ecb-aa7f-746a8bf16da4" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7ecb-aa7f-746a8bf16da4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7a60-89e2-d2fa0751937d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a0b4c9-59c7-7ecb-aa7f-746a8bf16da4" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7a60-89e2-d2fa0751937d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareDevelopmentMember_01a0b4c9-59c7-78b3-8590-d76f5703fe2a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SoftwareDevelopmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7a60-89e2-d2fa0751937d" xlink:to="loc_us-gaap_SoftwareDevelopmentMember_01a0b4c9-59c7-78b3-8590-d76f5703fe2a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareInDevelopmentMember_01a0b4c9-59c7-7fc2-98c6-3884ab220e6d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SoftwareInDevelopmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7a60-89e2-d2fa0751937d" xlink:to="loc_us-gaap_SoftwareInDevelopmentMember_01a0b4c9-59c7-7fc2-98c6-3884ab220e6d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_CapitalizedInternalUseSoftwareBeforeAccumulatedAmortization_01a0b4c9-59c7-75fd-a1cb-43e31bd71cf1" xlink:href="slqt-20260930.xsd#slqt_CapitalizedInternalUseSoftwareBeforeAccumulatedAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a0b4c9-59c7-7d7b-a3ee-a1fc4b8878c4" xlink:to="loc_slqt_CapitalizedInternalUseSoftwareBeforeAccumulatedAmortization_01a0b4c9-59c7-75fd-a1cb-43e31bd71cf1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_CapitalizedInternalUseSoftwareAccumulatedAmortization_01a0b4c9-59c7-70a5-a887-09f07539e046" xlink:href="slqt-20260930.xsd#slqt_CapitalizedInternalUseSoftwareAccumulatedAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a0b4c9-59c7-7d7b-a3ee-a1fc4b8878c4" xlink:to="loc_slqt_CapitalizedInternalUseSoftwareAccumulatedAmortization_01a0b4c9-59c7-70a5-a887-09f07539e046" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_CapitalizedInternalUseSoftwareNet_01a0b4c9-59c7-724b-9139-042c47285673" xlink:href="slqt-20260930.xsd#slqt_CapitalizedInternalUseSoftwareNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a0b4c9-59c7-7d7b-a3ee-a1fc4b8878c4" xlink:to="loc_slqt_CapitalizedInternalUseSoftwareNet_01a0b4c9-59c7-724b-9139-042c47285673" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/LEASESNarrativeDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#LEASESNarrativeDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/LEASESNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_01a10c1c-6d4d-70f8-b0d8-831297bf8d8c" 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_01a10c1c-16d7-70d4-ae0f-4d96de32e9f4" 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_01a10c1c-6d4d-70f8-b0d8-831297bf8d8c" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_01a10c1c-16d7-70d4-ae0f-4d96de32e9f4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_01a10c1c-6d4d-72db-9630-764873cc3850" 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_01a10c1c-16d7-70d4-ae0f-4d96de32e9f4" xlink:to="loc_srt_RangeAxis_01a10c1c-6d4d-72db-9630-764873cc3850" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_01a10c1c-6d4d-72db-9630-764873cc3850_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_01a10c1c-6d4d-72db-9630-764873cc3850" xlink:to="loc_srt_RangeMember_01a10c1c-6d4d-72db-9630-764873cc3850_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_01a10c1c-6d4d-7e9d-b6f5-0b73232dde61" 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_01a10c1c-6d4d-72db-9630-764873cc3850" xlink:to="loc_srt_RangeMember_01a10c1c-6d4d-7e9d-b6f5-0b73232dde61" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_01a10c1c-8d94-71a5-abc7-84e1642ecce3" 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_01a10c1c-6d4d-7e9d-b6f5-0b73232dde61" xlink:to="loc_srt_MinimumMember_01a10c1c-8d94-71a5-abc7-84e1642ecce3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_01a10c1c-9f40-7af7-9970-73fea542c840" 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_01a10c1c-6d4d-7e9d-b6f5-0b73232dde61" xlink:to="loc_srt_MaximumMember_01a10c1c-9f40-7af7-9970-73fea542c840" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseTermOfContract_01a10c1c-6d4d-7181-b877-d57ca53ed496" 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_01a10c1c-6d4d-70f8-b0d8-831297bf8d8c" xlink:to="loc_us-gaap_LesseeOperatingLeaseTermOfContract_01a10c1c-6d4d-7181-b877-d57ca53ed496" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_FinanceLeaseNumberOfLease_01a0b4c9-59c7-78ca-9efd-862faba7e51e" xlink:href="slqt-20260930.xsd#slqt_FinanceLeaseNumberOfLease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_01a10c1c-6d4d-70f8-b0d8-831297bf8d8c" xlink:to="loc_slqt_FinanceLeaseNumberOfLease_01a0b4c9-59c7-78ca-9efd-862faba7e51e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_FinanceLeaseNumberOfExistingLease_01a0b4c9-59c7-761e-8118-5dcacdabba42" xlink:href="slqt-20260930.xsd#slqt_FinanceLeaseNumberOfExistingLease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_01a10c1c-6d4d-70f8-b0d8-831297bf8d8c" xlink:to="loc_slqt_FinanceLeaseNumberOfExistingLease_01a0b4c9-59c7-761e-8118-5dcacdabba42" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_01a0b4c9-59c7-7a9e-8f7e-c07d7ae626bf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_01a10c1c-6d4d-70f8-b0d8-831297bf8d8c" xlink:to="loc_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_01a0b4c9-59c7-7a9e-8f7e-c07d7ae626bf" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/INTANGIBLEASSETSANDGOODWILLScheduleofIndefiniteLivedIntangibleAssetsDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#INTANGIBLEASSETSANDGOODWILLScheduleofIndefiniteLivedIntangibleAssetsDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/INTANGIBLEASSETSANDGOODWILLScheduleofIndefiniteLivedIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a0b4c9-59c7-7c61-9616-47a3b615edac" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a0b4c9-59c7-7f87-978c-c2dab7ceef44" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a0b4c9-59c7-7c61-9616-47a3b615edac" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a0b4c9-59c7-7f87-978c-c2dab7ceef44" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a0b4c9-59c7-7a70-bf42-ae28f6d865f8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a0b4c9-59c7-7f87-978c-c2dab7ceef44" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a0b4c9-59c7-7a70-bf42-ae28f6d865f8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7a70-bf42-ae28f6d865f8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a0b4c9-59c7-7a70-bf42-ae28f6d865f8" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7a70-bf42-ae28f6d865f8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7b61-a580-393893495bee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a0b4c9-59c7-7a70-bf42-ae28f6d865f8" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7b61-a580-393893495bee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_01a0b4c9-59c7-7db0-97e5-ee127c60cc3c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CustomerRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7b61-a580-393893495bee" xlink:to="loc_us-gaap_CustomerRelationshipsMember_01a0b4c9-59c7-7db0-97e5-ee127c60cc3c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_01a0b4c9-59c7-7350-b8c0-e47ceed46c60" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7b61-a580-393893495bee" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_01a0b4c9-59c7-7350-b8c0-e47ceed46c60" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncompeteAgreementsMember_01a0b4c9-59c7-716a-a7f6-2bb25e9a68df" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoncompeteAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7b61-a580-393893495bee" xlink:to="loc_us-gaap_NoncompeteAgreementsMember_01a0b4c9-59c7-716a-a7f6-2bb25e9a68df" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_01a0b4c9-59c7-739f-8de1-17b074ae0040" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a0b4c9-59c7-7c61-9616-47a3b615edac" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_01a0b4c9-59c7-739f-8de1-17b074ae0040" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_01a0b4c9-59c7-7d5f-a71d-5f77a2125579" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a0b4c9-59c7-7c61-9616-47a3b615edac" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_01a0b4c9-59c7-7d5f-a71d-5f77a2125579" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_01a0b4c9-59c7-7946-9d05-be53912e1fd4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a0b4c9-59c7-7c61-9616-47a3b615edac" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_01a0b4c9-59c7-7946-9d05-be53912e1fd4" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/INTANGIBLEASSETSANDGOODWILLScheduleofFutureAmortizationExpenseDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#INTANGIBLEASSETSANDGOODWILLScheduleofFutureAmortizationExpenseDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/INTANGIBLEASSETSANDGOODWILLScheduleofFutureAmortizationExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a0b4c9-59c7-76c4-b2a3-3d5482da78dd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a0b4c9-59c7-76a9-9d21-d87ab345b6ae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a0b4c9-59c7-76c4-b2a3-3d5482da78dd" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a0b4c9-59c7-76a9-9d21-d87ab345b6ae" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a0b4c9-59c7-7d49-84d5-51f08abe595b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_01a0b4c9-59c7-76a9-9d21-d87ab345b6ae" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a0b4c9-59c7-7d49-84d5-51f08abe595b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7d49-84d5-51f08abe595b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a0b4c9-59c7-7d49-84d5-51f08abe595b" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7d49-84d5-51f08abe595b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7c2e-bf32-a83c11bee782" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_01a0b4c9-59c7-7d49-84d5-51f08abe595b" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7c2e-bf32-a83c11bee782" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_01a0b4c9-59c7-7190-bcb0-f0aef09596e5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7c2e-bf32-a83c11bee782" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_01a0b4c9-59c7-7190-bcb0-f0aef09596e5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncompeteAgreementsMember_01a0b4c9-59c7-70bf-a78d-ea87951055ae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoncompeteAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7c2e-bf32-a83c11bee782" xlink:to="loc_us-gaap_NoncompeteAgreementsMember_01a0b4c9-59c7-70bf-a78d-ea87951055ae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_01a0b4c9-59c7-7ba6-a390-c827da6f17d7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CustomerRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01a0b4c9-59c7-7c2e-bf32-a83c11bee782" xlink:to="loc_us-gaap_CustomerRelationshipsMember_01a0b4c9-59c7-7ba6-a390-c827da6f17d7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_01a110dc-211d-762c-81e8-cd6a094c7cde" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a0b4c9-59c7-76c4-b2a3-3d5482da78dd" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_01a110dc-211d-762c-81e8-cd6a094c7cde" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_01a0b4c9-59c7-733e-93aa-4663b307455c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_01a0b4c9-59c7-76c4-b2a3-3d5482da78dd" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_01a0b4c9-59c7-733e-93aa-4663b307455c" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/DEBTScheduleofLongtermDebtInstrumentsDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#DEBTScheduleofLongtermDebtInstrumentsDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/DEBTScheduleofLongtermDebtInstrumentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_01a0b4c9-59c7-73f9-a2d0-4f6d872fcce7" 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_LineOfCreditFacilityTable_01a0b4c9-59c7-700c-b24a-a20d576e1e9f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_01a0b4c9-59c7-73f9-a2d0-4f6d872fcce7" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_01a0b4c9-59c7-700c-b24a-a20d576e1e9f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_01a0b4c9-59c7-7e80-8cdf-094557578c96" 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_LineOfCreditFacilityTable_01a0b4c9-59c7-700c-b24a-a20d576e1e9f" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_01a0b4c9-59c7-7e80-8cdf-094557578c96" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_01a0b4c9-59c7-7e80-8cdf-094557578c96_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_01a0b4c9-59c7-7e80-8cdf-094557578c96" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_01a0b4c9-59c7-7e80-8cdf-094557578c96_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_01a0b4c9-59c7-7f60-ada9-6ad67f9aaf0a" 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_01a0b4c9-59c7-7e80-8cdf-094557578c96" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_01a0b4c9-59c7-7f60-ada9-6ad67f9aaf0a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_01a0b4c9-59c7-7f65-8b5a-a4d835f72926" 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_01a0b4c9-59c7-7f60-ada9-6ad67f9aaf0a" xlink:to="loc_us-gaap_SecuredDebtMember_01a0b4c9-59c7-7f65-8b5a-a4d835f72926" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_01a14285-f7f1-7ddd-b4af-563e81e40f0f" 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_01a0b4c9-59c7-7f60-ada9-6ad67f9aaf0a" xlink:to="loc_us-gaap_LineOfCreditMember_01a14285-f7f1-7ddd-b4af-563e81e40f0f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_01a0b4c9-59c7-7710-ac0d-7e368c85734a" 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_01a0b4c9-59c7-7f60-ada9-6ad67f9aaf0a" xlink:to="loc_us-gaap_SeniorNotesMember_01a0b4c9-59c7-7710-ac0d-7e368c85734a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_01a0b4c9-59c7-7f93-bece-c5ef37caa55f" 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_LineOfCreditFacilityTable_01a0b4c9-59c7-700c-b24a-a20d576e1e9f" xlink:to="loc_us-gaap_DebtInstrumentAxis_01a0b4c9-59c7-7f93-bece-c5ef37caa55f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_01a0b4c9-59c7-7f93-bece-c5ef37caa55f_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_01a0b4c9-59c7-7f93-bece-c5ef37caa55f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_01a0b4c9-59c7-7f93-bece-c5ef37caa55f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_01a0b4c9-59c7-75b2-ba6d-995c4e4b3b55" 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_01a0b4c9-59c7-7f93-bece-c5ef37caa55f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_01a0b4c9-59c7-75b2-ba6d-995c4e4b3b55" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_TermLoan2026Member_01a0b4c9-59c7-758b-b31d-a5c6e7b92634" xlink:href="slqt-20260930.xsd#slqt_TermLoan2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a0b4c9-59c7-75b2-ba6d-995c4e4b3b55" xlink:to="loc_slqt_TermLoan2026Member_01a0b4c9-59c7-758b-b31d-a5c6e7b92634" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorSecuredNotes7Point8PercentClassAMember_01a0b4c9-59c7-7f73-bacd-779d0f7d7cf4" xlink:href="slqt-20260930.xsd#slqt_SeniorSecuredNotes7Point8PercentClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a0b4c9-59c7-75b2-ba6d-995c4e4b3b55" xlink:to="loc_slqt_SeniorSecuredNotes7Point8PercentClassAMember_01a0b4c9-59c7-7f73-bacd-779d0f7d7cf4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorSecuredNotes9Point65PercentClassBMember_01a0b4c9-59c7-74b0-bb32-4478b1220b71" xlink:href="slqt-20260930.xsd#slqt_SeniorSecuredNotes9Point65PercentClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a0b4c9-59c7-75b2-ba6d-995c4e4b3b55" xlink:to="loc_slqt_SeniorSecuredNotes9Point65PercentClassBMember_01a0b4c9-59c7-74b0-bb32-4478b1220b71" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_01a14285-f7f1-7ec1-82cb-e2f61aa7be91" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_01a0b4c9-59c7-700c-b24a-a20d576e1e9f" xlink:to="loc_us-gaap_CreditFacilityAxis_01a14285-f7f1-7ec1-82cb-e2f61aa7be91" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_01a14285-f7f1-7ec1-82cb-e2f61aa7be91_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_01a14285-f7f1-7ec1-82cb-e2f61aa7be91" xlink:to="loc_us-gaap_CreditFacilityDomain_01a14285-f7f1-7ec1-82cb-e2f61aa7be91_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_01a14285-f7f1-7d46-a6aa-e295287c3fa0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_01a14285-f7f1-7ec1-82cb-e2f61aa7be91" xlink:to="loc_us-gaap_CreditFacilityDomain_01a14285-f7f1-7d46-a6aa-e295287c3fa0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_01a14285-f7f1-7a28-96b7-866f2198e11c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_01a14285-f7f1-7d46-a6aa-e295287c3fa0" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_01a14285-f7f1-7a28-96b7-866f2198e11c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_01a0b4c9-59c7-7942-b3d3-cc966ca5d409" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_01a0b4c9-59c7-73f9-a2d0-4f6d872fcce7" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_01a0b4c9-59c7-7942-b3d3-cc966ca5d409" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_01a0b4c9-59c7-701a-a212-2f227b4c7efe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_01a0b4c9-59c7-73f9-a2d0-4f6d872fcce7" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_01a0b4c9-59c7-701a-a212-2f227b4c7efe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_01a0b4c9-59c7-75bf-bfbc-3c40f3786c45" 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_01a0b4c9-59c7-73f9-a2d0-4f6d872fcce7" xlink:to="loc_us-gaap_LongTermDebt_01a0b4c9-59c7-75bf-bfbc-3c40f3786c45" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_01a0b4c9-59c7-719e-8cd4-1cc54bb1197f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_01a0b4c9-59c7-73f9-a2d0-4f6d872fcce7" xlink:to="loc_us-gaap_LongTermDebtCurrent_01a0b4c9-59c7-719e-8cd4-1cc54bb1197f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_01a0b4c9-59c7-75cb-ace7-7776d46a4ca4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_01a0b4c9-59c7-73f9-a2d0-4f6d872fcce7" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_01a0b4c9-59c7-75cb-ace7-7776d46a4ca4" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/DEBTScheduleofMaturitiesofLongTermDebtDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#DEBTScheduleofMaturitiesofLongTermDebtDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/DEBTScheduleofMaturitiesofLongTermDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-7090-b27c-6879de0b64c9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_01a0b4c9-59c7-74ee-b3a5-767550c1d294" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-7090-b27c-6879de0b64c9" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_01a0b4c9-59c7-74ee-b3a5-767550c1d294" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_01a0b4c9-59c7-730a-b359-d03c879d7f5e" 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_LineOfCreditFacilityTable_01a0b4c9-59c7-74ee-b3a5-767550c1d294" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_01a0b4c9-59c7-730a-b359-d03c879d7f5e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_01a0b4c9-59c7-730a-b359-d03c879d7f5e_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_01a0b4c9-59c7-730a-b359-d03c879d7f5e" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_01a0b4c9-59c7-730a-b359-d03c879d7f5e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_01a0b4c9-59c7-7853-ab86-b42aa9bb877c" 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_01a0b4c9-59c7-730a-b359-d03c879d7f5e" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_01a0b4c9-59c7-7853-ab86-b42aa9bb877c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_01a16686-cf57-7f11-baf9-e52502c976f0" 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_01a0b4c9-59c7-7853-ab86-b42aa9bb877c" xlink:to="loc_us-gaap_LineOfCreditMember_01a16686-cf57-7f11-baf9-e52502c976f0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_01a0b4c9-59c7-75d7-9445-8426ded85a7b" 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_01a0b4c9-59c7-7853-ab86-b42aa9bb877c" xlink:to="loc_us-gaap_SecuredDebtMember_01a0b4c9-59c7-75d7-9445-8426ded85a7b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_01a0b4c9-59c7-777e-8f65-8bf766c56fef" 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_01a0b4c9-59c7-7853-ab86-b42aa9bb877c" xlink:to="loc_us-gaap_SeniorNotesMember_01a0b4c9-59c7-777e-8f65-8bf766c56fef" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_01a16686-cf57-7fdf-89f7-3e1eb461fa9b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_01a0b4c9-59c7-74ee-b3a5-767550c1d294" xlink:to="loc_us-gaap_CreditFacilityAxis_01a16686-cf57-7fdf-89f7-3e1eb461fa9b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_01a16686-cf57-7fdf-89f7-3e1eb461fa9b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_01a16686-cf57-7fdf-89f7-3e1eb461fa9b" xlink:to="loc_us-gaap_CreditFacilityDomain_01a16686-cf57-7fdf-89f7-3e1eb461fa9b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_01a16686-cf57-7391-905d-d8c7cde43b88" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_01a16686-cf57-7fdf-89f7-3e1eb461fa9b" xlink:to="loc_us-gaap_CreditFacilityDomain_01a16686-cf57-7391-905d-d8c7cde43b88" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_01a16686-cf57-70d5-b638-a9e61de40303" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_01a16686-cf57-7391-905d-d8c7cde43b88" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_01a16686-cf57-70d5-b638-a9e61de40303" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_01a0b4c9-59c7-7cb0-a0a4-da144a0f0cf8" 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_LineOfCreditFacilityTable_01a0b4c9-59c7-74ee-b3a5-767550c1d294" xlink:to="loc_us-gaap_DebtInstrumentAxis_01a0b4c9-59c7-7cb0-a0a4-da144a0f0cf8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_01a0b4c9-59c7-7cb0-a0a4-da144a0f0cf8_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_01a0b4c9-59c7-7cb0-a0a4-da144a0f0cf8" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_01a0b4c9-59c7-7cb0-a0a4-da144a0f0cf8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_01a0b4c9-59c7-76a4-8f6b-bd64ab542af7" 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_01a0b4c9-59c7-7cb0-a0a4-da144a0f0cf8" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_01a0b4c9-59c7-76a4-8f6b-bd64ab542af7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_TermLoan2026Member_01a0b4c9-59c7-7c9e-8a57-c1a42e683517" xlink:href="slqt-20260930.xsd#slqt_TermLoan2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a0b4c9-59c7-76a4-8f6b-bd64ab542af7" xlink:to="loc_slqt_TermLoan2026Member_01a0b4c9-59c7-7c9e-8a57-c1a42e683517" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorSecuredNotes7Point8PercentClassAMember_01a0b4c9-59c7-78af-985e-447479b62918" xlink:href="slqt-20260930.xsd#slqt_SeniorSecuredNotes7Point8PercentClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a0b4c9-59c7-76a4-8f6b-bd64ab542af7" xlink:to="loc_slqt_SeniorSecuredNotes7Point8PercentClassAMember_01a0b4c9-59c7-78af-985e-447479b62918" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorSecuredNotes9Point65PercentClassBMember_01a0b4c9-59c7-72d8-9528-9a6c3cc38073" xlink:href="slqt-20260930.xsd#slqt_SeniorSecuredNotes9Point65PercentClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a0b4c9-59c7-76a4-8f6b-bd64ab542af7" xlink:to="loc_slqt_SeniorSecuredNotes9Point65PercentClassBMember_01a0b4c9-59c7-72d8-9528-9a6c3cc38073" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_01a10d4a-4b0c-71f5-ba56-52fb7c0ba3fc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-7090-b27c-6879de0b64c9" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_01a10d4a-4b0c-71f5-ba56-52fb7c0ba3fc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_01a0b4c9-59c7-7386-a705-d200a381d0ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-7090-b27c-6879de0b64c9" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_01a0b4c9-59c7-7386-a705-d200a381d0ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_01a0b4c9-59c7-795f-ace1-63de4384476d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-7090-b27c-6879de0b64c9" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_01a0b4c9-59c7-795f-ace1-63de4384476d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_01a0b4c9-59c7-7b41-9c22-fb9df04ad9c9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-7090-b27c-6879de0b64c9" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_01a0b4c9-59c7-7b41-9c22-fb9df04ad9c9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_01a0b4c9-59c7-73d8-a8cf-42644cef86f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-7090-b27c-6879de0b64c9" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_01a0b4c9-59c7-73d8-a8cf-42644cef86f2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_01a0b4c9-59c7-736e-a1e2-8e4a82f19212" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-7090-b27c-6879de0b64c9" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_01a0b4c9-59c7-736e-a1e2-8e4a82f19212" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/DEBTNarrativeDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#DEBTNarrativeDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/DEBTNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_01a16846-cdb7-7a2f-8d9a-74774661f283" 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_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:to="loc_us-gaap_DebtInstrumentAxis_01a16846-cdb7-7a2f-8d9a-74774661f283" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-7a2f-8d9a-74774661f283_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_01a16846-cdb7-7a2f-8d9a-74774661f283" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-7a2f-8d9a-74774661f283_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-70d7-82ed-22192bc3687f" 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_01a16846-cdb7-7a2f-8d9a-74774661f283" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-70d7-82ed-22192bc3687f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_TermLoanDueJanuary2031Member_01a16846-cdb7-75d1-be5b-8ad435d2e69c" xlink:href="slqt-20260930.xsd#slqt_TermLoanDueJanuary2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-70d7-82ed-22192bc3687f" xlink:to="loc_slqt_TermLoanDueJanuary2031Member_01a16846-cdb7-75d1-be5b-8ad435d2e69c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorSecuredNotes7Point8PercentClassAMember_01a16847-698d-7fc8-8883-88152275ee2f" xlink:href="slqt-20260930.xsd#slqt_SeniorSecuredNotes7Point8PercentClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-70d7-82ed-22192bc3687f" xlink:to="loc_slqt_SeniorSecuredNotes7Point8PercentClassAMember_01a16847-698d-7fc8-8883-88152275ee2f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorSecuredNotes9Point65PercentClassBMember_01a16847-698d-7bb8-99b5-9c0990cc1d6d" xlink:href="slqt-20260930.xsd#slqt_SeniorSecuredNotes9Point65PercentClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-70d7-82ed-22192bc3687f" xlink:to="loc_slqt_SeniorSecuredNotes9Point65PercentClassBMember_01a16847-698d-7bb8-99b5-9c0990cc1d6d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorNotesSeptember2028Member_01a16847-e1e7-755b-835e-48ef6a415983" xlink:href="slqt-20260930.xsd#slqt_SeniorNotesSeptember2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-70d7-82ed-22192bc3687f" xlink:to="loc_slqt_SeniorNotesSeptember2028Member_01a16847-e1e7-755b-835e-48ef6a415983" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorNotesOctober2030Member_01a16847-e1e7-71fd-ad41-d251d40ba38c" xlink:href="slqt-20260930.xsd#slqt_SeniorNotesOctober2030Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-70d7-82ed-22192bc3687f" xlink:to="loc_slqt_SeniorNotesOctober2030Member_01a16847-e1e7-71fd-ad41-d251d40ba38c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_01a16846-cdb7-723c-a3fe-d98435f3ede0" 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_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_01a16846-cdb7-723c-a3fe-d98435f3ede0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_01a16846-cdb7-723c-a3fe-d98435f3ede0_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_01a16846-cdb7-723c-a3fe-d98435f3ede0" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_01a16846-cdb7-723c-a3fe-d98435f3ede0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_01a16846-cdb7-76f9-939e-80035e0de50b" 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_01a16846-cdb7-723c-a3fe-d98435f3ede0" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_01a16846-cdb7-76f9-939e-80035e0de50b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_01a16846-cdb7-72f0-8b62-3843ccdcfa47" 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_01a16846-cdb7-76f9-939e-80035e0de50b" xlink:to="loc_us-gaap_SecuredDebtMember_01a16846-cdb7-72f0-8b62-3843ccdcfa47" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_01a16846-cdb7-7c15-8e31-95ebfa1f485d" 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_01a16846-cdb7-76f9-939e-80035e0de50b" xlink:to="loc_us-gaap_LineOfCreditMember_01a16846-cdb7-7c15-8e31-95ebfa1f485d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_01a16847-e1e7-75d8-ae42-a0a2cb88b381" 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_01a16846-cdb7-76f9-939e-80035e0de50b" xlink:to="loc_us-gaap_SeniorNotesMember_01a16847-e1e7-75d8-ae42-a0a2cb88b381" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_01a16846-cdb7-7aa5-9e85-7023b8070824" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:to="loc_us-gaap_CreditFacilityAxis_01a16846-cdb7-7aa5-9e85-7023b8070824" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_01a16846-cdb7-7aa5-9e85-7023b8070824_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_01a16846-cdb7-7aa5-9e85-7023b8070824" xlink:to="loc_us-gaap_CreditFacilityDomain_01a16846-cdb7-7aa5-9e85-7023b8070824_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_01a16846-cdb7-77aa-8f7c-5d0e794d7a54" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_01a16846-cdb7-7aa5-9e85-7023b8070824" xlink:to="loc_us-gaap_CreditFacilityDomain_01a16846-cdb7-77aa-8f7c-5d0e794d7a54" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_A2026SeniorSecuredCreditFacilityMember_01a16846-cdb7-7d6c-a030-60e8a6c8441d" xlink:href="slqt-20260930.xsd#slqt_A2026SeniorSecuredCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_01a16846-cdb7-77aa-8f7c-5d0e794d7a54" xlink:to="loc_slqt_A2026SeniorSecuredCreditFacilityMember_01a16846-cdb7-7d6c-a030-60e8a6c8441d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorSecuredCreditFacilityMember_01a16847-e1e7-7983-a07b-ec1a02016266" xlink:href="slqt-20260930.xsd#slqt_SeniorSecuredCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_01a16846-cdb7-77aa-8f7c-5d0e794d7a54" xlink:to="loc_slqt_SeniorSecuredCreditFacilityMember_01a16847-e1e7-7983-a07b-ec1a02016266" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_01a16847-0a2e-7c20-8c55-5cdcd73f6929" 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_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:to="loc_srt_RangeAxis_01a16847-0a2e-7c20-8c55-5cdcd73f6929" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_01a16847-0a2e-7c20-8c55-5cdcd73f6929_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_01a16847-0a2e-7c20-8c55-5cdcd73f6929" xlink:to="loc_srt_RangeMember_01a16847-0a2e-7c20-8c55-5cdcd73f6929_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_01a16847-0a2e-756d-be5b-8b53e8eecc48" 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_01a16847-0a2e-7c20-8c55-5cdcd73f6929" xlink:to="loc_srt_RangeMember_01a16847-0a2e-756d-be5b-8b53e8eecc48" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_01a16847-0a2e-7926-83b5-2a36e63b49b6" 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_01a16847-0a2e-756d-be5b-8b53e8eecc48" xlink:to="loc_srt_MinimumMember_01a16847-0a2e-7926-83b5-2a36e63b49b6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_01a16847-0a2e-7445-b8c9-666f9412b753" 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_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:to="loc_srt_StatementScenarioAxis_01a16847-0a2e-7445-b8c9-666f9412b753" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_01a16847-0a2e-7445-b8c9-666f9412b753_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_01a16847-0a2e-7445-b8c9-666f9412b753" xlink:to="loc_srt_ScenarioUnspecifiedDomain_01a16847-0a2e-7445-b8c9-666f9412b753_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_01a16847-0a2e-7a1d-bf42-f73d75b27bd8" 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_01a16847-0a2e-7445-b8c9-666f9412b753" xlink:to="loc_srt_ScenarioUnspecifiedDomain_01a16847-0a2e-7a1d-bf42-f73d75b27bd8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_01a16847-0a2e-7265-bc28-d18916ebaba9" 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_01a16847-0a2e-7a1d-bf42-f73d75b27bd8" xlink:to="loc_srt_ScenarioForecastMember_01a16847-0a2e-7265-bc28-d18916ebaba9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PrepaymentPeriodAxis_01a16847-3c42-730b-9817-e5f31c872532" xlink:href="slqt-20260930.xsd#slqt_PrepaymentPeriodAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:to="loc_slqt_PrepaymentPeriodAxis_01a16847-3c42-730b-9817-e5f31c872532" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PrepaymentPeriodDomain_01a16847-3c42-730b-9817-e5f31c872532_default" xlink:href="slqt-20260930.xsd#slqt_PrepaymentPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_slqt_PrepaymentPeriodAxis_01a16847-3c42-730b-9817-e5f31c872532" xlink:to="loc_slqt_PrepaymentPeriodDomain_01a16847-3c42-730b-9817-e5f31c872532_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PrepaymentPeriodDomain_01a16847-3c42-7633-bf4c-deb9c203d7ad" xlink:href="slqt-20260930.xsd#slqt_PrepaymentPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_slqt_PrepaymentPeriodAxis_01a16847-3c42-730b-9817-e5f31c872532" xlink:to="loc_slqt_PrepaymentPeriodDomain_01a16847-3c42-7633-bf4c-deb9c203d7ad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ThroughJanuary82028Member_01a16847-3c42-7c37-96fc-ded4306a0059" xlink:href="slqt-20260930.xsd#slqt_ThroughJanuary82028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_PrepaymentPeriodDomain_01a16847-3c42-7633-bf4c-deb9c203d7ad" xlink:to="loc_slqt_ThroughJanuary82028Member_01a16847-3c42-7c37-96fc-ded4306a0059" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_FromJanuary92028ThroughJanuary82029Member_01a16847-3c42-7753-a94e-c257ae942ba1" xlink:href="slqt-20260930.xsd#slqt_FromJanuary92028ThroughJanuary82029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_PrepaymentPeriodDomain_01a16847-3c42-7633-bf4c-deb9c203d7ad" xlink:to="loc_slqt_FromJanuary92028ThroughJanuary82029Member_01a16847-3c42-7753-a94e-c257ae942ba1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionLocationBalanceAxis_01a16847-e1e7-799e-bf93-4435f2f7e449" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfFinancialPositionLocationBalanceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:to="loc_us-gaap_StatementOfFinancialPositionLocationBalanceAxis_01a16847-e1e7-799e-bf93-4435f2f7e449" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_01a16847-e1e7-7de3-85ba-d737126778eb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:to="loc_us-gaap_StatementClassOfStockAxis_01a16847-e1e7-7de3-85ba-d737126778eb" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a16847-e1e7-7de3-85ba-d737126778eb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a16847-e1e7-7de3-85ba-d737126778eb" xlink:to="loc_us-gaap_ClassOfStockDomain_01a16847-e1e7-7de3-85ba-d737126778eb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a16847-e1e7-7608-b309-a836d5b463b2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a16847-e1e7-7de3-85ba-d737126778eb" xlink:to="loc_us-gaap_ClassOfStockDomain_01a16847-e1e7-7608-b309-a836d5b463b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_01a16847-e1e7-7541-98f8-01e2d493541a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_01a16847-e1e7-7608-b309-a836d5b463b2" xlink:to="loc_us-gaap_CommonClassAMember_01a16847-e1e7-7541-98f8-01e2d493541a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_01a16847-e1e7-7614-bfee-241b1a95a59a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_01a16847-e1e7-7608-b309-a836d5b463b2" xlink:to="loc_us-gaap_CommonClassBMember_01a16847-e1e7-7614-bfee-241b1a95a59a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_01a16846-cdb7-7fee-8268-0c5aace5aec9" 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_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_01a16846-cdb7-7fee-8268-0c5aace5aec9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_01a16846-cdb7-76cc-9fd0-19b78729295a" 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_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_01a16846-cdb7-76cc-9fd0-19b78729295a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_01a16847-0a2e-7a60-afe9-c3760e392579" 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_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_01a16847-0a2e-7a60-afe9-c3760e392579" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_01a16847-0a2e-7e3f-99e0-00a366adfd3c" 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_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_01a16847-0a2e-7e3f-99e0-00a366adfd3c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_DebtInstrumentPrincipalPaymentsPercent_01a16847-0a2e-7424-a8ab-206acd98cf9f" xlink:href="slqt-20260930.xsd#slqt_DebtInstrumentPrincipalPaymentsPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_slqt_DebtInstrumentPrincipalPaymentsPercent_01a16847-0a2e-7424-a8ab-206acd98cf9f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_01a16847-0a2e-73ab-8ed3-564d95c75d1f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_01a16847-0a2e-73ab-8ed3-564d95c75d1f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_01a16847-0a2e-7e2b-a3d8-d11d2e52ff83" 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_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_01a16847-0a2e-7e2b-a3d8-d11d2e52ff83" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_01a16847-0a2e-7fe8-b5db-c4257245b12d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_01a16847-0a2e-7fe8-b5db-c4257245b12d" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_DebtInstrumentPremiumPrepaymentPercentage_01a16847-3c42-7730-9772-7eb30b94e00c" xlink:href="slqt-20260930.xsd#slqt_DebtInstrumentPremiumPrepaymentPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_slqt_DebtInstrumentPremiumPrepaymentPercentage_01a16847-3c42-7730-9772-7eb30b94e00c" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnamortizedDebtIssuanceExpense_01a16847-3c42-7325-909e-856b4bc0b7e5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnamortizedDebtIssuanceExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_UnamortizedDebtIssuanceExpense_01a16847-3c42-7325-909e-856b4bc0b7e5" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_01a16847-3c42-7b7c-a21d-d2d969a8c72a" 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_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_LineOfCredit_01a16847-3c42-7b7c-a21d-d2d969a8c72a" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_RenewalCommissionsReceivableCurrent_01a187ad-49ba-7398-9991-2f64fc4b8950" xlink:href="slqt-20260930.xsd#slqt_RenewalCommissionsReceivableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_slqt_RenewalCommissionsReceivableCurrent_01a187ad-49ba-7398-9991-2f64fc4b8950" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCash_01a16847-e1e7-7472-845e-c3ee5387e71b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_RestrictedCash_01a16847-e1e7-7472-845e-c3ee5387e71b" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_01a16847-e1e7-771c-aa21-e2fdcdb7c319" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_01a16847-e1e7-771c-aa21-e2fdcdb7c319" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashNoncurrent_01a18e33-866b-74dd-9ec5-0dc909904816" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_RestrictedCashNoncurrent_01a18e33-866b-74dd-9ec5-0dc909904816" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfDebt_01a16847-e1e7-74c9-b684-53bc4b7c355b" 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_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_RepaymentsOfDebt_01a16847-e1e7-74c9-b684-53bc4b7c355b" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAssetStatementOfFinancialPositionExtensibleList_01a18e25-861d-7c34-b5d9-9b6f389be59c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashAssetStatementOfFinancialPositionExtensibleList"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_RestrictedCashAssetStatementOfFinancialPositionExtensibleList_01a18e25-861d-7c34-b5d9-9b6f389be59c" xlink:type="arc" order="16"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/DEBTNarrativeDetails_1" xlink:type="simple" xlink:href="slqt-20260930.xsd#DEBTNarrativeDetails_1"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/DEBTNarrativeDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_01a16846-cdb7-7a2f-8d9a-74774661f283" 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_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:to="loc_us-gaap_DebtInstrumentAxis_01a16846-cdb7-7a2f-8d9a-74774661f283" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-7a2f-8d9a-74774661f283_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_01a16846-cdb7-7a2f-8d9a-74774661f283" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-7a2f-8d9a-74774661f283_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-70d7-82ed-22192bc3687f" 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_01a16846-cdb7-7a2f-8d9a-74774661f283" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-70d7-82ed-22192bc3687f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_TermLoanDueJanuary2031Member_01a16846-cdb7-75d1-be5b-8ad435d2e69c" xlink:href="slqt-20260930.xsd#slqt_TermLoanDueJanuary2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-70d7-82ed-22192bc3687f" xlink:to="loc_slqt_TermLoanDueJanuary2031Member_01a16846-cdb7-75d1-be5b-8ad435d2e69c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorSecuredNotes7Point8PercentClassAMember_01a16847-698d-7fc8-8883-88152275ee2f" xlink:href="slqt-20260930.xsd#slqt_SeniorSecuredNotes7Point8PercentClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-70d7-82ed-22192bc3687f" xlink:to="loc_slqt_SeniorSecuredNotes7Point8PercentClassAMember_01a16847-698d-7fc8-8883-88152275ee2f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorSecuredNotes9Point65PercentClassBMember_01a16847-698d-7bb8-99b5-9c0990cc1d6d" xlink:href="slqt-20260930.xsd#slqt_SeniorSecuredNotes9Point65PercentClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-70d7-82ed-22192bc3687f" xlink:to="loc_slqt_SeniorSecuredNotes9Point65PercentClassBMember_01a16847-698d-7bb8-99b5-9c0990cc1d6d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorNotesSeptember2028Member_01a16847-e1e7-755b-835e-48ef6a415983" xlink:href="slqt-20260930.xsd#slqt_SeniorNotesSeptember2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-70d7-82ed-22192bc3687f" xlink:to="loc_slqt_SeniorNotesSeptember2028Member_01a16847-e1e7-755b-835e-48ef6a415983" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorNotesOctober2030Member_01a16847-e1e7-71fd-ad41-d251d40ba38c" xlink:href="slqt-20260930.xsd#slqt_SeniorNotesOctober2030Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_01a16846-cdb7-70d7-82ed-22192bc3687f" xlink:to="loc_slqt_SeniorNotesOctober2030Member_01a16847-e1e7-71fd-ad41-d251d40ba38c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_01a16846-cdb7-723c-a3fe-d98435f3ede0" 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_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_01a16846-cdb7-723c-a3fe-d98435f3ede0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_01a16846-cdb7-723c-a3fe-d98435f3ede0_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_01a16846-cdb7-723c-a3fe-d98435f3ede0" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_01a16846-cdb7-723c-a3fe-d98435f3ede0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_01a16846-cdb7-76f9-939e-80035e0de50b" 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_01a16846-cdb7-723c-a3fe-d98435f3ede0" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_01a16846-cdb7-76f9-939e-80035e0de50b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_01a16846-cdb7-72f0-8b62-3843ccdcfa47" 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_01a16846-cdb7-76f9-939e-80035e0de50b" xlink:to="loc_us-gaap_SecuredDebtMember_01a16846-cdb7-72f0-8b62-3843ccdcfa47" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_01a16846-cdb7-7c15-8e31-95ebfa1f485d" 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_01a16846-cdb7-76f9-939e-80035e0de50b" xlink:to="loc_us-gaap_LineOfCreditMember_01a16846-cdb7-7c15-8e31-95ebfa1f485d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_01a16847-e1e7-75d8-ae42-a0a2cb88b381" 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_01a16846-cdb7-76f9-939e-80035e0de50b" xlink:to="loc_us-gaap_SeniorNotesMember_01a16847-e1e7-75d8-ae42-a0a2cb88b381" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_01a16846-cdb7-7aa5-9e85-7023b8070824" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:to="loc_us-gaap_CreditFacilityAxis_01a16846-cdb7-7aa5-9e85-7023b8070824" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_01a16846-cdb7-7aa5-9e85-7023b8070824_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_01a16846-cdb7-7aa5-9e85-7023b8070824" xlink:to="loc_us-gaap_CreditFacilityDomain_01a16846-cdb7-7aa5-9e85-7023b8070824_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_01a16846-cdb7-77aa-8f7c-5d0e794d7a54" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_01a16846-cdb7-7aa5-9e85-7023b8070824" xlink:to="loc_us-gaap_CreditFacilityDomain_01a16846-cdb7-77aa-8f7c-5d0e794d7a54" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_A2026SeniorSecuredCreditFacilityMember_01a16846-cdb7-7d6c-a030-60e8a6c8441d" xlink:href="slqt-20260930.xsd#slqt_A2026SeniorSecuredCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_01a16846-cdb7-77aa-8f7c-5d0e794d7a54" xlink:to="loc_slqt_A2026SeniorSecuredCreditFacilityMember_01a16846-cdb7-7d6c-a030-60e8a6c8441d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorSecuredCreditFacilityMember_01a16847-e1e7-7983-a07b-ec1a02016266" xlink:href="slqt-20260930.xsd#slqt_SeniorSecuredCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_01a16846-cdb7-77aa-8f7c-5d0e794d7a54" xlink:to="loc_slqt_SeniorSecuredCreditFacilityMember_01a16847-e1e7-7983-a07b-ec1a02016266" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_01a16847-0a2e-7c20-8c55-5cdcd73f6929" 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_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:to="loc_srt_RangeAxis_01a16847-0a2e-7c20-8c55-5cdcd73f6929" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_01a16847-0a2e-7c20-8c55-5cdcd73f6929_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_01a16847-0a2e-7c20-8c55-5cdcd73f6929" xlink:to="loc_srt_RangeMember_01a16847-0a2e-7c20-8c55-5cdcd73f6929_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_01a16847-0a2e-756d-be5b-8b53e8eecc48" 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_01a16847-0a2e-7c20-8c55-5cdcd73f6929" xlink:to="loc_srt_RangeMember_01a16847-0a2e-756d-be5b-8b53e8eecc48" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_01a16847-0a2e-7926-83b5-2a36e63b49b6" 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_01a16847-0a2e-756d-be5b-8b53e8eecc48" xlink:to="loc_srt_MinimumMember_01a16847-0a2e-7926-83b5-2a36e63b49b6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_01a16847-0a2e-7445-b8c9-666f9412b753" 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_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:to="loc_srt_StatementScenarioAxis_01a16847-0a2e-7445-b8c9-666f9412b753" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_01a16847-0a2e-7445-b8c9-666f9412b753_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_01a16847-0a2e-7445-b8c9-666f9412b753" xlink:to="loc_srt_ScenarioUnspecifiedDomain_01a16847-0a2e-7445-b8c9-666f9412b753_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_01a16847-0a2e-7a1d-bf42-f73d75b27bd8" 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_01a16847-0a2e-7445-b8c9-666f9412b753" xlink:to="loc_srt_ScenarioUnspecifiedDomain_01a16847-0a2e-7a1d-bf42-f73d75b27bd8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_01a16847-0a2e-7265-bc28-d18916ebaba9" 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_01a16847-0a2e-7a1d-bf42-f73d75b27bd8" xlink:to="loc_srt_ScenarioForecastMember_01a16847-0a2e-7265-bc28-d18916ebaba9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PrepaymentPeriodAxis_01a16847-3c42-730b-9817-e5f31c872532" xlink:href="slqt-20260930.xsd#slqt_PrepaymentPeriodAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:to="loc_slqt_PrepaymentPeriodAxis_01a16847-3c42-730b-9817-e5f31c872532" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PrepaymentPeriodDomain_01a16847-3c42-730b-9817-e5f31c872532_default" xlink:href="slqt-20260930.xsd#slqt_PrepaymentPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_slqt_PrepaymentPeriodAxis_01a16847-3c42-730b-9817-e5f31c872532" xlink:to="loc_slqt_PrepaymentPeriodDomain_01a16847-3c42-730b-9817-e5f31c872532_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PrepaymentPeriodDomain_01a16847-3c42-7633-bf4c-deb9c203d7ad" xlink:href="slqt-20260930.xsd#slqt_PrepaymentPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_slqt_PrepaymentPeriodAxis_01a16847-3c42-730b-9817-e5f31c872532" xlink:to="loc_slqt_PrepaymentPeriodDomain_01a16847-3c42-7633-bf4c-deb9c203d7ad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ThroughJanuary82028Member_01a16847-3c42-7c37-96fc-ded4306a0059" xlink:href="slqt-20260930.xsd#slqt_ThroughJanuary82028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_PrepaymentPeriodDomain_01a16847-3c42-7633-bf4c-deb9c203d7ad" xlink:to="loc_slqt_ThroughJanuary82028Member_01a16847-3c42-7c37-96fc-ded4306a0059" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_FromJanuary92028ThroughJanuary82029Member_01a16847-3c42-7753-a94e-c257ae942ba1" xlink:href="slqt-20260930.xsd#slqt_FromJanuary92028ThroughJanuary82029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_PrepaymentPeriodDomain_01a16847-3c42-7633-bf4c-deb9c203d7ad" xlink:to="loc_slqt_FromJanuary92028ThroughJanuary82029Member_01a16847-3c42-7753-a94e-c257ae942ba1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_01a16847-e1e7-7de3-85ba-d737126778eb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_01a0b4c9-59c7-74c1-8f9e-84844810da6e" xlink:to="loc_us-gaap_StatementClassOfStockAxis_01a16847-e1e7-7de3-85ba-d737126778eb" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a16847-e1e7-7de3-85ba-d737126778eb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a16847-e1e7-7de3-85ba-d737126778eb" xlink:to="loc_us-gaap_ClassOfStockDomain_01a16847-e1e7-7de3-85ba-d737126778eb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a16847-e1e7-7608-b309-a836d5b463b2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a16847-e1e7-7de3-85ba-d737126778eb" xlink:to="loc_us-gaap_ClassOfStockDomain_01a16847-e1e7-7608-b309-a836d5b463b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_01a16847-e1e7-7541-98f8-01e2d493541a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_01a16847-e1e7-7608-b309-a836d5b463b2" xlink:to="loc_us-gaap_CommonClassAMember_01a16847-e1e7-7541-98f8-01e2d493541a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_01a16847-e1e7-7614-bfee-241b1a95a59a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_01a16847-e1e7-7608-b309-a836d5b463b2" xlink:to="loc_us-gaap_CommonClassBMember_01a16847-e1e7-7614-bfee-241b1a95a59a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_01a16846-cdb7-7fee-8268-0c5aace5aec9" 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_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_01a16846-cdb7-7fee-8268-0c5aace5aec9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_01a16846-cdb7-76cc-9fd0-19b78729295a" 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_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_01a16846-cdb7-76cc-9fd0-19b78729295a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_01a16847-0a2e-7a60-afe9-c3760e392579" 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_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_01a16847-0a2e-7a60-afe9-c3760e392579" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_01a16847-0a2e-7e3f-99e0-00a366adfd3c" 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_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_01a16847-0a2e-7e3f-99e0-00a366adfd3c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_DebtInstrumentPrincipalPaymentsPercent_01a16847-0a2e-7424-a8ab-206acd98cf9f" xlink:href="slqt-20260930.xsd#slqt_DebtInstrumentPrincipalPaymentsPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_slqt_DebtInstrumentPrincipalPaymentsPercent_01a16847-0a2e-7424-a8ab-206acd98cf9f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_01a16847-0a2e-73ab-8ed3-564d95c75d1f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_01a16847-0a2e-73ab-8ed3-564d95c75d1f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_01a16847-0a2e-7e2b-a3d8-d11d2e52ff83" 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_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_01a16847-0a2e-7e2b-a3d8-d11d2e52ff83" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_01a16847-0a2e-7fe8-b5db-c4257245b12d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_01a16847-0a2e-7fe8-b5db-c4257245b12d" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_DebtInstrumentPremiumPrepaymentPercentage_01a16847-3c42-7730-9772-7eb30b94e00c" xlink:href="slqt-20260930.xsd#slqt_DebtInstrumentPremiumPrepaymentPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_slqt_DebtInstrumentPremiumPrepaymentPercentage_01a16847-3c42-7730-9772-7eb30b94e00c" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnamortizedDebtIssuanceExpense_01a16847-3c42-7325-909e-856b4bc0b7e5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnamortizedDebtIssuanceExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_UnamortizedDebtIssuanceExpense_01a16847-3c42-7325-909e-856b4bc0b7e5" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_01a16847-3c42-7b7c-a21d-d2d969a8c72a" 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_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_LineOfCredit_01a16847-3c42-7b7c-a21d-d2d969a8c72a" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_RenewalCommissionsReceivableCurrent_01a187ad-49ba-7398-9991-2f64fc4b8950" xlink:href="slqt-20260930.xsd#slqt_RenewalCommissionsReceivableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_slqt_RenewalCommissionsReceivableCurrent_01a187ad-49ba-7398-9991-2f64fc4b8950" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCash_01a16847-e1e7-7472-845e-c3ee5387e71b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_RestrictedCash_01a16847-e1e7-7472-845e-c3ee5387e71b" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_01a16847-e1e7-771c-aa21-e2fdcdb7c319" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_01a16847-e1e7-771c-aa21-e2fdcdb7c319" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashNoncurrent_01a18e33-866b-74dd-9ec5-0dc909904816" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_RestrictedCashNoncurrent_01a18e33-866b-74dd-9ec5-0dc909904816" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfDebt_01a16847-e1e7-74c9-b684-53bc4b7c355b" 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_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_RepaymentsOfDebt_01a16847-e1e7-74c9-b684-53bc4b7c355b" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAssetStatementOfFinancialPositionExtensibleList_01a18e25-861d-7c34-b5d9-9b6f389be59c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashAssetStatementOfFinancialPositionExtensibleList"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_01a0b4c9-59c7-73ca-ab55-027667f74021" xlink:to="loc_us-gaap_RestrictedCashAssetStatementOfFinancialPositionExtensibleList_01a18e25-861d-7c34-b5d9-9b6f389be59c" xlink:type="arc" order="16"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/DEBTNarrativeVariableInterestEntitiesDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#DEBTNarrativeVariableInterestEntitiesDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/DEBTNarrativeVariableInterestEntitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityLineItems_01a0b4c9-59c7-73a1-9d25-00b648524328" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableInterestEntityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable_01a0b4c9-59c7-7d9b-9d7c-f6780a98a35d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfVariableInterestEntitiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_VariableInterestEntityLineItems_01a0b4c9-59c7-73a1-9d25-00b648524328" xlink:to="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable_01a0b4c9-59c7-7d9b-9d7c-f6780a98a35d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_01a0b4c9-59c7-7fc3-bcb8-3ad5fa75030d" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable_01a0b4c9-59c7-7d9b-9d7c-f6780a98a35d" xlink:to="loc_srt_ConsolidatedEntitiesAxis_01a0b4c9-59c7-7fc3-bcb8-3ad5fa75030d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_01a0b4c9-59c7-7fc3-bcb8-3ad5fa75030d_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_01a0b4c9-59c7-7fc3-bcb8-3ad5fa75030d" xlink:to="loc_srt_ConsolidatedEntitiesDomain_01a0b4c9-59c7-7fc3-bcb8-3ad5fa75030d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_01a0b4c9-59c7-759f-afd1-e0447defa66d" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_01a0b4c9-59c7-7fc3-bcb8-3ad5fa75030d" xlink:to="loc_srt_ConsolidatedEntitiesDomain_01a0b4c9-59c7-759f-afd1-e0447defa66d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_01a0b4c9-59c7-7d6b-aa89-07cd17f52699" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableInterestEntityPrimaryBeneficiaryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_01a0b4c9-59c7-759f-afd1-e0447defa66d" xlink:to="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_01a0b4c9-59c7-7d6b-aa89-07cd17f52699" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherBorrowings_01a0b4c9-59c7-75f3-bedd-2cbb49695c25" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherBorrowings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems_01a0b4c9-59c7-73a1-9d25-00b648524328" xlink:to="loc_us-gaap_OtherBorrowings_01a0b4c9-59c7-75f3-bedd-2cbb49695c25" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/SeniorNonConvertiblePreferredStockDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#SeniorNonConvertiblePreferredStockDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/SeniorNonConvertiblePreferredStockDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ScheduleOfPreferredStockLineItems_01a0b4c9-59c7-7344-ac60-2e4e71f7d985" xlink:href="slqt-20260930.xsd#slqt_ScheduleOfPreferredStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ScheduleOfPreferredStockTable_01a0b4c9-59c7-7201-a0c2-cb1a54370b44" xlink:href="slqt-20260930.xsd#slqt_ScheduleOfPreferredStockTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_slqt_ScheduleOfPreferredStockLineItems_01a0b4c9-59c7-7344-ac60-2e4e71f7d985" xlink:to="loc_slqt_ScheduleOfPreferredStockTable_01a0b4c9-59c7-7201-a0c2-cb1a54370b44" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-784e-9aa4-33befed2a639" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_slqt_ScheduleOfPreferredStockTable_01a0b4c9-59c7-7201-a0c2-cb1a54370b44" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-784e-9aa4-33befed2a639" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-784e-9aa4-33befed2a639_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-784e-9aa4-33befed2a639" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-784e-9aa4-33befed2a639_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-72ec-b317-044bc4d50442" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-784e-9aa4-33befed2a639" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-72ec-b317-044bc4d50442" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorNonConvertiblePreferredStockWarrantMember_01a0b4c9-59c7-76fa-9b69-da6e356acbdb" xlink:href="slqt-20260930.xsd#slqt_SeniorNonConvertiblePreferredStockWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-72ec-b317-044bc4d50442" xlink:to="loc_slqt_SeniorNonConvertiblePreferredStockWarrantMember_01a0b4c9-59c7-76fa-9b69-da6e356acbdb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedPerTransaction_01a0b4c9-59c7-7791-9778-b0d42770d08d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SaleOfStockConsiderationReceivedPerTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_ScheduleOfPreferredStockLineItems_01a0b4c9-59c7-7344-ac60-2e4e71f7d985" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedPerTransaction_01a0b4c9-59c7-7791-9778-b0d42770d08d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesAuthorized_01a0b4c9-59c7-7d87-90d3-4c49059446f8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquitySharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_ScheduleOfPreferredStockLineItems_01a0b4c9-59c7-7344-ac60-2e4e71f7d985" xlink:to="loc_us-gaap_TemporaryEquitySharesAuthorized_01a0b4c9-59c7-7d87-90d3-4c49059446f8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_01a0b4c9-59c7-7a95-afa7-6ecdb2f17ea9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_ScheduleOfPreferredStockLineItems_01a0b4c9-59c7-7344-ac60-2e4e71f7d985" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_01a0b4c9-59c7-7a95-afa7-6ecdb2f17ea9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockLiquidationPreferenceValue_01a0b4c9-59c7-7444-9d36-04780510944c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockLiquidationPreferenceValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_ScheduleOfPreferredStockLineItems_01a0b4c9-59c7-7344-ac60-2e4e71f7d985" xlink:to="loc_us-gaap_PreferredStockLiquidationPreferenceValue_01a0b4c9-59c7-7444-9d36-04780510944c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_01a0b4c9-59c7-782f-ad65-b4fe7118af46" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_ScheduleOfPreferredStockLineItems_01a0b4c9-59c7-7344-ac60-2e4e71f7d985" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_01a0b4c9-59c7-782f-ad65-b4fe7118af46" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_01a0b4c9-59c7-73c2-846a-4f798ac27edc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_ScheduleOfPreferredStockLineItems_01a0b4c9-59c7-7344-ac60-2e4e71f7d985" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_01a0b4c9-59c7-73c2-846a-4f798ac27edc" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PaymentOfFinancingAndStockIssuanceCostsAggregateClosingFeePercent_01a0b4c9-59c7-730c-b58e-56aebfe896ec" xlink:href="slqt-20260930.xsd#slqt_PaymentOfFinancingAndStockIssuanceCostsAggregateClosingFeePercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_ScheduleOfPreferredStockLineItems_01a0b4c9-59c7-7344-ac60-2e4e71f7d985" xlink:to="loc_slqt_PaymentOfFinancingAndStockIssuanceCostsAggregateClosingFeePercent_01a0b4c9-59c7-730c-b58e-56aebfe896ec" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendRatePercentage_01a0b4c9-59c7-7630-abfd-7fc53d74e1a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockDividendRatePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_ScheduleOfPreferredStockLineItems_01a0b4c9-59c7-7344-ac60-2e4e71f7d985" xlink:to="loc_us-gaap_PreferredStockDividendRatePercentage_01a0b4c9-59c7-7630-abfd-7fc53d74e1a9" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PreferredStockDividendRateCashLiquidityDebtRatioCovenantsPercent_01a0b4c9-59c7-702c-b90c-64024c52f28e" xlink:href="slqt-20260930.xsd#slqt_PreferredStockDividendRateCashLiquidityDebtRatioCovenantsPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_ScheduleOfPreferredStockLineItems_01a0b4c9-59c7-7344-ac60-2e4e71f7d985" xlink:to="loc_slqt_PreferredStockDividendRateCashLiquidityDebtRatioCovenantsPercent_01a0b4c9-59c7-702c-b90c-64024c52f28e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_DebtInstrumentCovenantComplianceMinimumLiquidityAmount_01a0b4c9-59c7-70d0-9362-bb6a4896ea3e" xlink:href="slqt-20260930.xsd#slqt_DebtInstrumentCovenantComplianceMinimumLiquidityAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_ScheduleOfPreferredStockLineItems_01a0b4c9-59c7-7344-ac60-2e4e71f7d985" xlink:to="loc_slqt_DebtInstrumentCovenantComplianceMinimumLiquidityAmount_01a0b4c9-59c7-70d0-9362-bb6a4896ea3e" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_DebtInstrumentCovenantComplianceDebtThresholdMaximum_01a0b4c9-59c7-702a-848c-6ceaaaba3bff" xlink:href="slqt-20260930.xsd#slqt_DebtInstrumentCovenantComplianceDebtThresholdMaximum"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_ScheduleOfPreferredStockLineItems_01a0b4c9-59c7-7344-ac60-2e4e71f7d985" xlink:to="loc_slqt_DebtInstrumentCovenantComplianceDebtThresholdMaximum_01a0b4c9-59c7-702a-848c-6ceaaaba3bff" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_DebtInstrumentCovenantInterestCoverageRatioMaximum_01a0b4c9-59c7-7107-a0d2-ce374e720a4c" xlink:href="slqt-20260930.xsd#slqt_DebtInstrumentCovenantInterestCoverageRatioMaximum"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_ScheduleOfPreferredStockLineItems_01a0b4c9-59c7-7344-ac60-2e4e71f7d985" xlink:to="loc_slqt_DebtInstrumentCovenantInterestCoverageRatioMaximum_01a0b4c9-59c7-7107-a0d2-ce374e720a4c" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_DebtInstrumentCovenantInterestLeverageRatioMinimum_01a0b4c9-59c7-781c-a10d-c51e6fb3657b" xlink:href="slqt-20260930.xsd#slqt_DebtInstrumentCovenantInterestLeverageRatioMinimum"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_ScheduleOfPreferredStockLineItems_01a0b4c9-59c7-7344-ac60-2e4e71f7d985" xlink:to="loc_slqt_DebtInstrumentCovenantInterestLeverageRatioMinimum_01a0b4c9-59c7-781c-a10d-c51e6fb3657b" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_01a0b4c9-59c7-7886-a063-eba64618b814" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_slqt_ScheduleOfPreferredStockLineItems_01a0b4c9-59c7-7344-ac60-2e4e71f7d985" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_01a0b4c9-59c7-7886-a063-eba64618b814" xlink:type="arc" order="13"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/WarrantstoPurchaseSharesofCommonStockDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#WarrantstoPurchaseSharesofCommonStockDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/WarrantstoPurchaseSharesofCommonStockDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightLineItems_01a0b4c9-59c7-7d25-adc8-534d40953003" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightTable_01a0b4c9-59c7-7014-beee-b341ee8c879a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_01a0b4c9-59c7-7d25-adc8-534d40953003" xlink:to="loc_us-gaap_ClassOfWarrantOrRightTable_01a0b4c9-59c7-7014-beee-b341ee8c879a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_01a0b4c9-59c7-7769-86f3-af91afd55d3a" 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_ClassOfWarrantOrRightTable_01a0b4c9-59c7-7014-beee-b341ee8c879a" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_01a0b4c9-59c7-7769-86f3-af91afd55d3a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_01a0b4c9-59c7-7769-86f3-af91afd55d3a_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_01a0b4c9-59c7-7769-86f3-af91afd55d3a" xlink:to="loc_us-gaap_EquityComponentDomain_01a0b4c9-59c7-7769-86f3-af91afd55d3a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_01a0b4c9-59c7-7fec-924c-1221ee73647a" 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_01a0b4c9-59c7-7769-86f3-af91afd55d3a" xlink:to="loc_us-gaap_EquityComponentDomain_01a0b4c9-59c7-7fec-924c-1221ee73647a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantMember_01a0b4c9-59c7-73bb-8aa8-92b7e52e956b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_01a0b4c9-59c7-7fec-924c-1221ee73647a" xlink:to="loc_us-gaap_WarrantMember_01a0b4c9-59c7-73bb-8aa8-92b7e52e956b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-7ef4-a884-d611b6b287f5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_01a0b4c9-59c7-7014-beee-b341ee8c879a" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-7ef4-a884-d611b6b287f5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7ef4-a884-d611b6b287f5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-7ef4-a884-d611b6b287f5" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7ef4-a884-d611b6b287f5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7f63-81d8-8334d337a9b1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-7ef4-a884-d611b6b287f5" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7f63-81d8-8334d337a9b1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PreferredStockWarrantMember_01a0b4c9-59c7-7d4f-9630-2f3b8dfb3c17" xlink:href="slqt-20260930.xsd#slqt_PreferredStockWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7f63-81d8-8334d337a9b1" xlink:to="loc_slqt_PreferredStockWarrantMember_01a0b4c9-59c7-7d4f-9630-2f3b8dfb3c17" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PreferredStockWarrantExercisePrice0.01Member_01a0b4c9-59c7-70a5-9151-ba55f1c74a1d" xlink:href="slqt-20260930.xsd#slqt_PreferredStockWarrantExercisePrice0.01Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7f63-81d8-8334d337a9b1" xlink:to="loc_slqt_PreferredStockWarrantExercisePrice0.01Member_01a0b4c9-59c7-70a5-9151-ba55f1c74a1d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PreferredStockWarrantAverageSellingPriceMember_01a0b4c9-59c7-79ea-8a30-816eb824fad3" xlink:href="slqt-20260930.xsd#slqt_PreferredStockWarrantAverageSellingPriceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7f63-81d8-8334d337a9b1" xlink:to="loc_slqt_PreferredStockWarrantAverageSellingPriceMember_01a0b4c9-59c7-79ea-8a30-816eb824fad3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PreferredStockWarrantExercisePrice5.50Member_01a0b4c9-59c7-7920-a3ae-05fc89c72859" xlink:href="slqt-20260930.xsd#slqt_PreferredStockWarrantExercisePrice5.50Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7f63-81d8-8334d337a9b1" xlink:to="loc_slqt_PreferredStockWarrantExercisePrice5.50Member_01a0b4c9-59c7-7920-a3ae-05fc89c72859" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorNonConvertiblePreferredStockWarrantMember_01a0b4c9-59c7-72c4-8e83-45008bb82803" xlink:href="slqt-20260930.xsd#slqt_SeniorNonConvertiblePreferredStockWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7f63-81d8-8334d337a9b1" xlink:to="loc_slqt_SeniorNonConvertiblePreferredStockWarrantMember_01a0b4c9-59c7-72c4-8e83-45008bb82803" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight_01a0b4c9-59c7-720e-bc84-15ba49b75e2f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_01a0b4c9-59c7-7d25-adc8-534d40953003" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight_01a0b4c9-59c7-720e-bc84-15ba49b75e2f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_NumberOfTranches_01a0b4c9-59c7-7c8b-82c7-301fc5705526" xlink:href="slqt-20260930.xsd#slqt_NumberOfTranches"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_01a0b4c9-59c7-7d25-adc8-534d40953003" xlink:to="loc_slqt_NumberOfTranches_01a0b4c9-59c7-7c8b-82c7-301fc5705526" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesIssuedPricePerShare_01a0b4c9-59c7-7bee-a19b-b01aa189a136" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharesIssuedPricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_01a0b4c9-59c7-7d25-adc8-534d40953003" xlink:to="loc_us-gaap_SharesIssuedPricePerShare_01a0b4c9-59c7-7bee-a19b-b01aa189a136" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingTerm_01a0b4c9-59c7-71e3-9543-2a6355170a29" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WarrantsAndRightsOutstandingTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_01a0b4c9-59c7-7d25-adc8-534d40953003" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingTerm_01a0b4c9-59c7-71e3-9543-2a6355170a29" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOptionChangesInFairValueGainLoss1_01a0b4c9-59c7-77cf-9f55-821de8a77f64" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueOptionChangesInFairValueGainLoss1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_01a0b4c9-59c7-7d25-adc8-534d40953003" xlink:to="loc_us-gaap_FairValueOptionChangesInFairValueGainLoss1_01a0b4c9-59c7-77cf-9f55-821de8a77f64" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_01a0b4c9-59c7-794f-ab4c-edf520842ce9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_01a0b4c9-59c7-7d25-adc8-534d40953003" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_01a0b4c9-59c7-794f-ab4c-edf520842ce9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_01a0b4c9-59c7-784f-aad2-a4e004f9678e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_01a0b4c9-59c7-7d25-adc8-534d40953003" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_01a0b4c9-59c7-784f-aad2-a4e004f9678e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_StockAndWarrantsIssuedDuringPeriodInvestorWarrantsDistributionPercent_01a0b4c9-59c7-7ab7-8e1e-f6157165b2bf" xlink:href="slqt-20260930.xsd#slqt_StockAndWarrantsIssuedDuringPeriodInvestorWarrantsDistributionPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_01a0b4c9-59c7-7d25-adc8-534d40953003" xlink:to="loc_slqt_StockAndWarrantsIssuedDuringPeriodInvestorWarrantsDistributionPercent_01a0b4c9-59c7-7ab7-8e1e-f6157165b2bf" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ClassOfWarrantOrRightExpirationPeriod_01a0b4c9-59c7-7cbb-b094-94ca31488ca1" xlink:href="slqt-20260930.xsd#slqt_ClassOfWarrantOrRightExpirationPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_01a0b4c9-59c7-7d25-adc8-534d40953003" xlink:to="loc_slqt_ClassOfWarrantOrRightExpirationPeriod_01a0b4c9-59c7-7cbb-b094-94ca31488ca1" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised_01a0b4c9-59c7-7016-9cb3-3d8679e637f1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_01a0b4c9-59c7-7d25-adc8-534d40953003" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised_01a0b4c9-59c7-7016-9cb3-3d8679e637f1" xlink:type="arc" order="9"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/FairValueMeasurementsScheduleofAssetsAndLiabilitiesMeasuredatFairValueonRecurringBasisDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#FairValueMeasurementsScheduleofAssetsAndLiabilitiesMeasuredatFairValueonRecurringBasisDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/FairValueMeasurementsScheduleofAssetsAndLiabilitiesMeasuredatFairValueonRecurringBasisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_01a0b4c9-59c7-7814-89e7-ca7553918830" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7064-b88a-aa423009bfa7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_01a0b4c9-59c7-7814-89e7-ca7553918830" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7064-b88a-aa423009bfa7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_01a0b4c9-59c7-719a-933d-d7fb14725cbc" 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_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7064-b88a-aa423009bfa7" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_01a0b4c9-59c7-719a-933d-d7fb14725cbc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_01a0b4c9-59c7-719a-933d-d7fb14725cbc_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_01a0b4c9-59c7-719a-933d-d7fb14725cbc" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_01a0b4c9-59c7-719a-933d-d7fb14725cbc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_01a0b4c9-59c7-7c71-8a9b-90d3cfdc93fb" 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_01a0b4c9-59c7-719a-933d-d7fb14725cbc" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_01a0b4c9-59c7-7c71-8a9b-90d3cfdc93fb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_01a0b4c9-59c7-7854-b6c5-73da5d9de93d" 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_01a0b4c9-59c7-7c71-8a9b-90d3cfdc93fb" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_01a0b4c9-59c7-7854-b6c5-73da5d9de93d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_01a0b4c9-59c7-74e7-9c1a-753c17654487" 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_01a0b4c9-59c7-7c71-8a9b-90d3cfdc93fb" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_01a0b4c9-59c7-74e7-9c1a-753c17654487" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_01a0b4c9-59c7-76e7-8eb0-87098d62cbfe" 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_01a0b4c9-59c7-7c71-8a9b-90d3cfdc93fb" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_01a0b4c9-59c7-76e7-8eb0-87098d62cbfe" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_01a0b4c9-59c7-7ebe-b1e5-c692dd17f568" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7064-b88a-aa423009bfa7" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_01a0b4c9-59c7-7ebe-b1e5-c692dd17f568" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_01a0b4c9-59c7-7ebe-b1e5-c692dd17f568_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_01a0b4c9-59c7-7ebe-b1e5-c692dd17f568" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_01a0b4c9-59c7-7ebe-b1e5-c692dd17f568_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_01a0b4c9-59c7-7d4a-8ac3-6bbe8691c26d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_01a0b4c9-59c7-7ebe-b1e5-c692dd17f568" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_01a0b4c9-59c7-7d4a-8ac3-6bbe8691c26d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_01a0b4c9-59c7-7234-90c8-97350256f701" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_01a0b4c9-59c7-7d4a-8ac3-6bbe8691c26d" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_01a0b4c9-59c7-7234-90c8-97350256f701" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_01a0b4c9-59c7-79ad-b9ef-49895ce8f7e1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7064-b88a-aa423009bfa7" xlink:to="loc_us-gaap_FinancialInstrumentAxis_01a0b4c9-59c7-79ad-b9ef-49895ce8f7e1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a0b4c9-59c7-79ad-b9ef-49895ce8f7e1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_01a0b4c9-59c7-79ad-b9ef-49895ce8f7e1" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a0b4c9-59c7-79ad-b9ef-49895ce8f7e1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a0b4c9-59c7-768c-a16f-e698f70e820a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_01a0b4c9-59c7-79ad-b9ef-49895ce8f7e1" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a0b4c9-59c7-768c-a16f-e698f70e820a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantMember_01a0b4c9-59c7-7e66-b044-42a33610bfa8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01a0b4c9-59c7-768c-a16f-e698f70e820a" xlink:to="loc_us-gaap_WarrantMember_01a0b4c9-59c7-7e66-b044-42a33610bfa8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_01a0b4c9-59c7-76f7-a9dd-fe0df6bf4938" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_01a0b4c9-59c7-7814-89e7-ca7553918830" xlink:to="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_01a0b4c9-59c7-76f7-a9dd-fe0df6bf4938" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilitiesNoncurrent_01a0b4c9-59c7-74bf-8fa6-ef30358a78ad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_01a0b4c9-59c7-76f7-a9dd-fe0df6bf4938" xlink:to="loc_us-gaap_DerivativeLiabilitiesNoncurrent_01a0b4c9-59c7-74bf-8fa6-ef30358a78ad" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/FairValueMeasurementsScheduleofEstimatedFairValueoftheEleventhAmendmentWarrantsDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#FairValueMeasurementsScheduleofEstimatedFairValueoftheEleventhAmendmentWarrantsDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/FairValueMeasurementsScheduleofEstimatedFairValueoftheEleventhAmendmentWarrantsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_01a0b4c9-59c7-7a6a-8864-515cb2370bf4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7786-aed3-254e2f8ab995" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_01a0b4c9-59c7-7a6a-8864-515cb2370bf4" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7786-aed3-254e2f8ab995" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeAxis_01a0b4c9-59c7-75c1-8a48-564644e0879f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7786-aed3-254e2f8ab995" xlink:to="loc_us-gaap_MeasurementInputTypeAxis_01a0b4c9-59c7-75c1-8a48-564644e0879f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-75c1-8a48-564644e0879f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_01a0b4c9-59c7-75c1-8a48-564644e0879f" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-75c1-8a48-564644e0879f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-72cc-977d-e5720a62a3d9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_01a0b4c9-59c7-75c1-8a48-564644e0879f" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-72cc-977d-e5720a62a3d9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputSharePriceMember_01a0b4c9-59c7-7384-9d7a-3df6f4a94ed6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputSharePriceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-72cc-977d-e5720a62a3d9" xlink:to="loc_us-gaap_MeasurementInputSharePriceMember_01a0b4c9-59c7-7384-9d7a-3df6f4a94ed6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputExercisePriceMember_01a0b4c9-59c7-7f5d-b1ba-34d4da4c3160" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputExercisePriceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-72cc-977d-e5720a62a3d9" xlink:to="loc_us-gaap_MeasurementInputExercisePriceMember_01a0b4c9-59c7-7f5d-b1ba-34d4da4c3160" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputPriceVolatilityMember_01a0b4c9-59c7-7809-99bd-b49e7d077dc7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputPriceVolatilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-72cc-977d-e5720a62a3d9" xlink:to="loc_us-gaap_MeasurementInputPriceVolatilityMember_01a0b4c9-59c7-7809-99bd-b49e7d077dc7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_01a0b4c9-59c7-7fba-9ebb-8695058fb282" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputRiskFreeInterestRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-72cc-977d-e5720a62a3d9" xlink:to="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_01a0b4c9-59c7-7fba-9ebb-8695058fb282" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputExpectedDividendRateMember_01a0b4c9-59c7-79a6-8b16-f5539b5661e3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputExpectedDividendRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-72cc-977d-e5720a62a3d9" xlink:to="loc_us-gaap_MeasurementInputExpectedDividendRateMember_01a0b4c9-59c7-79a6-8b16-f5539b5661e3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputExpectedTermMember_01a0b4c9-59c7-7425-9ac4-d29565ad65e9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputExpectedTermMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-72cc-977d-e5720a62a3d9" xlink:to="loc_us-gaap_MeasurementInputExpectedTermMember_01a0b4c9-59c7-7425-9ac4-d29565ad65e9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_MeasurementInputEstimatedFairValuePerWarrantMember_01a0b4c9-59c7-7130-898c-a3842be87e47" xlink:href="slqt-20260930.xsd#slqt_MeasurementInputEstimatedFairValuePerWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-72cc-977d-e5720a62a3d9" xlink:to="loc_slqt_MeasurementInputEstimatedFairValuePerWarrantMember_01a0b4c9-59c7-7130-898c-a3842be87e47" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingAxis_01a0b4c9-59c7-793e-aa5b-ad72887f7e99" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VestingAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7786-aed3-254e2f8ab995" xlink:to="loc_us-gaap_VestingAxis_01a0b4c9-59c7-793e-aa5b-ad72887f7e99" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_01a0b4c9-59c7-793e-aa5b-ad72887f7e99_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VestingAxis_01a0b4c9-59c7-793e-aa5b-ad72887f7e99" xlink:to="loc_us-gaap_VestingDomain_01a0b4c9-59c7-793e-aa5b-ad72887f7e99_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_01a0b4c9-59c7-7e1d-94fb-e838ae64e9ee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VestingAxis_01a0b4c9-59c7-793e-aa5b-ad72887f7e99" xlink:to="loc_us-gaap_VestingDomain_01a0b4c9-59c7-7e1d-94fb-e838ae64e9ee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_01a0b4c9-59c7-75b0-89b7-3ef238da0e29" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationAwardTrancheOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_01a0b4c9-59c7-7e1d-94fb-e838ae64e9ee" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_01a0b4c9-59c7-75b0-89b7-3ef238da0e29" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_01a0b4c9-59c7-7b14-bda4-b5530a98aa6c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WarrantsAndRightsOutstandingMeasurementInput"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_01a0b4c9-59c7-7a6a-8864-515cb2370bf4" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_01a0b4c9-59c7-7b14-bda4-b5530a98aa6c" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/FairValueMeasurementsNarrativeDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#FairValueMeasurementsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/FairValueMeasurementsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_01a0b4c9-59c7-7a4f-9c1e-4b3d53880137" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7afb-b3ab-1cb4a7acf554" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_01a0b4c9-59c7-7a4f-9c1e-4b3d53880137" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7afb-b3ab-1cb4a7acf554" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-7b7e-baa0-64248f89f5dd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7afb-b3ab-1cb4a7acf554" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-7b7e-baa0-64248f89f5dd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7b7e-baa0-64248f89f5dd_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-7b7e-baa0-64248f89f5dd" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7b7e-baa0-64248f89f5dd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7690-8c2f-7dd99d010c73" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-7b7e-baa0-64248f89f5dd" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7690-8c2f-7dd99d010c73" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorNonConvertiblePreferredStockWarrantMember_01a0b4c9-59c7-72d5-8f77-738d397e6acf" xlink:href="slqt-20260930.xsd#slqt_SeniorNonConvertiblePreferredStockWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7690-8c2f-7dd99d010c73" xlink:to="loc_slqt_SeniorNonConvertiblePreferredStockWarrantMember_01a0b4c9-59c7-72d5-8f77-738d397e6acf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ClassOfWarrantOrRightRemainingContractualTerm_01a0b4c9-59c7-7a96-a4d4-c4d2570707a5" xlink:href="slqt-20260930.xsd#slqt_ClassOfWarrantOrRightRemainingContractualTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_01a0b4c9-59c7-7a4f-9c1e-4b3d53880137" xlink:to="loc_slqt_ClassOfWarrantOrRightRemainingContractualTerm_01a0b4c9-59c7-7a96-a4d4-c4d2570707a5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ClassOfWarrantOrRightInterestRateTerm_01a0b4c9-59c7-75bc-a162-eaad552984e4" xlink:href="slqt-20260930.xsd#slqt_ClassOfWarrantOrRightInterestRateTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_01a0b4c9-59c7-7a4f-9c1e-4b3d53880137" xlink:to="loc_slqt_ClassOfWarrantOrRightInterestRateTerm_01a0b4c9-59c7-75bc-a162-eaad552984e4" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/FairValueMeasurementsScheduleofEstimatedFairValueofthePreferredStockWarrantsDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#FairValueMeasurementsScheduleofEstimatedFairValueofthePreferredStockWarrantsDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/FairValueMeasurementsScheduleofEstimatedFairValueofthePreferredStockWarrantsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_01a0b4c9-59c7-7491-920a-aa1472507ba8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7b31-92d1-232610d871aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_01a0b4c9-59c7-7491-920a-aa1472507ba8" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7b31-92d1-232610d871aa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-79c6-acb4-2efdf586aafe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7b31-92d1-232610d871aa" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-79c6-acb4-2efdf586aafe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-79c6-acb4-2efdf586aafe_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-79c6-acb4-2efdf586aafe" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-79c6-acb4-2efdf586aafe_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7bf0-b1bb-9e8d9257b728" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-79c6-acb4-2efdf586aafe" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7bf0-b1bb-9e8d9257b728" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PreferredStockWarrantMember_01a0b4c9-59c7-71b8-8d29-c160ac5cfaed" xlink:href="slqt-20260930.xsd#slqt_PreferredStockWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7bf0-b1bb-9e8d9257b728" xlink:to="loc_slqt_PreferredStockWarrantMember_01a0b4c9-59c7-71b8-8d29-c160ac5cfaed" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeAxis_01a0b4c9-59c7-71f0-986b-81c615a8b1f6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7b31-92d1-232610d871aa" xlink:to="loc_us-gaap_MeasurementInputTypeAxis_01a0b4c9-59c7-71f0-986b-81c615a8b1f6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-71f0-986b-81c615a8b1f6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_01a0b4c9-59c7-71f0-986b-81c615a8b1f6" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-71f0-986b-81c615a8b1f6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-7dd6-9b24-52b8f0bc2eb5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_01a0b4c9-59c7-71f0-986b-81c615a8b1f6" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-7dd6-9b24-52b8f0bc2eb5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputSharePriceMember_01a0b4c9-59c7-7ee7-a4fa-f868b317e6fe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputSharePriceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-7dd6-9b24-52b8f0bc2eb5" xlink:to="loc_us-gaap_MeasurementInputSharePriceMember_01a0b4c9-59c7-7ee7-a4fa-f868b317e6fe" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputExercisePriceMember_01a0b4c9-59c7-7404-9339-3500eab39854" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputExercisePriceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-7dd6-9b24-52b8f0bc2eb5" xlink:to="loc_us-gaap_MeasurementInputExercisePriceMember_01a0b4c9-59c7-7404-9339-3500eab39854" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputPriceVolatilityMember_01a0b4c9-59c7-7ae4-9395-9d30c7e5140a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputPriceVolatilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-7dd6-9b24-52b8f0bc2eb5" xlink:to="loc_us-gaap_MeasurementInputPriceVolatilityMember_01a0b4c9-59c7-7ae4-9395-9d30c7e5140a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_01a0b4c9-59c7-76d0-89a5-e92542635df2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputRiskFreeInterestRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-7dd6-9b24-52b8f0bc2eb5" xlink:to="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_01a0b4c9-59c7-76d0-89a5-e92542635df2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputExpectedDividendRateMember_01a0b4c9-59c7-7c7d-9115-7853d4ec6322" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputExpectedDividendRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-7dd6-9b24-52b8f0bc2eb5" xlink:to="loc_us-gaap_MeasurementInputExpectedDividendRateMember_01a0b4c9-59c7-7c7d-9115-7853d4ec6322" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputExpectedTermMember_01a0b4c9-59c7-72fb-adc1-167d9c69441f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputExpectedTermMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-7dd6-9b24-52b8f0bc2eb5" xlink:to="loc_us-gaap_MeasurementInputExpectedTermMember_01a0b4c9-59c7-72fb-adc1-167d9c69441f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_MeasurementInputEstimatedFairValuePerWarrantMember_01a0b4c9-59c7-7612-96e9-cf1a790a1dd1" xlink:href="slqt-20260930.xsd#slqt_MeasurementInputEstimatedFairValuePerWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_01a0b4c9-59c7-7dd6-9b24-52b8f0bc2eb5" xlink:to="loc_slqt_MeasurementInputEstimatedFairValuePerWarrantMember_01a0b4c9-59c7-7612-96e9-cf1a790a1dd1" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingAxis_01a0b4c9-59c7-7934-9436-b11cfff04fe7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VestingAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7b31-92d1-232610d871aa" xlink:to="loc_us-gaap_VestingAxis_01a0b4c9-59c7-7934-9436-b11cfff04fe7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_01a0b4c9-59c7-7934-9436-b11cfff04fe7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VestingAxis_01a0b4c9-59c7-7934-9436-b11cfff04fe7" xlink:to="loc_us-gaap_VestingDomain_01a0b4c9-59c7-7934-9436-b11cfff04fe7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_01a0b4c9-59c7-75fd-b5e1-3a87fc734641" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VestingAxis_01a0b4c9-59c7-7934-9436-b11cfff04fe7" xlink:to="loc_us-gaap_VestingDomain_01a0b4c9-59c7-75fd-b5e1-3a87fc734641" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_TrancheAMember_01a0b4c9-59c7-7539-a7e9-331bbaf77d56" xlink:href="slqt-20260930.xsd#slqt_TrancheAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_01a0b4c9-59c7-75fd-b5e1-3a87fc734641" xlink:to="loc_slqt_TrancheAMember_01a0b4c9-59c7-7539-a7e9-331bbaf77d56" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_TrancheBMember_01a0b4c9-59c7-778a-87ea-0ec8127a4774" xlink:href="slqt-20260930.xsd#slqt_TrancheBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_01a0b4c9-59c7-75fd-b5e1-3a87fc734641" xlink:to="loc_slqt_TrancheBMember_01a0b4c9-59c7-778a-87ea-0ec8127a4774" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_TrancheCMember_01a0b4c9-59c7-73bc-8caf-325502b3f559" xlink:href="slqt-20260930.xsd#slqt_TrancheCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_01a0b4c9-59c7-75fd-b5e1-3a87fc734641" xlink:to="loc_slqt_TrancheCMember_01a0b4c9-59c7-73bc-8caf-325502b3f559" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_01a0b4c9-59c7-7e26-90e6-7c456ab4b3ac" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WarrantsAndRightsOutstandingMeasurementInput"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_01a0b4c9-59c7-7491-920a-aa1472507ba8" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_01a0b4c9-59c7-7e26-90e6-7c456ab4b3ac" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/FairValueMeasurementsScheduleofChangesinLevel3FairValueMeasurementsDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#FairValueMeasurementsScheduleofChangesinLevel3FairValueMeasurementsDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/FairValueMeasurementsScheduleofChangesinLevel3FairValueMeasurementsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_01a0b4c9-59c7-7e70-9180-f1066848a4ff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7a51-91a0-05ea0426c5cc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_01a0b4c9-59c7-7e70-9180-f1066848a4ff" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7a51-91a0-05ea0426c5cc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-7260-a24d-57de77bfded5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7a51-91a0-05ea0426c5cc" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-7260-a24d-57de77bfded5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7260-a24d-57de77bfded5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-7260-a24d-57de77bfded5" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7260-a24d-57de77bfded5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7cbb-a321-b00f337c3b7e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-59c7-7260-a24d-57de77bfded5" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7cbb-a321-b00f337c3b7e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantMember_01a0b4c9-59c7-77d7-94be-251120d7b3e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-59c7-7cbb-a321-b00f337c3b7e" xlink:to="loc_us-gaap_WarrantMember_01a0b4c9-59c7-77d7-94be-251120d7b3e7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_01a0b4c9-59c7-7e57-9d27-de03f9842d0a" 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_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_01a0b4c9-59c7-7a51-91a0-05ea0426c5cc" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_01a0b4c9-59c7-7e57-9d27-de03f9842d0a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_01a0b4c9-59c7-7e57-9d27-de03f9842d0a_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_01a0b4c9-59c7-7e57-9d27-de03f9842d0a" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_01a0b4c9-59c7-7e57-9d27-de03f9842d0a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_01a0b4c9-59c7-71db-891a-340fe68fe639" 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_01a0b4c9-59c7-7e57-9d27-de03f9842d0a" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_01a0b4c9-59c7-71db-891a-340fe68fe639" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_01a0b4c9-59c7-7c88-8ced-c7469bafc60e" 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_01a0b4c9-59c7-71db-891a-340fe68fe639" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_01a0b4c9-59c7-7c88-8ced-c7469bafc60e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_01a0b4c9-59c7-759a-8c22-4ee373c22793" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_01a0b4c9-59c7-7e70-9180-f1066848a4ff" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_01a0b4c9-59c7-759a-8c22-4ee373c22793" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_01a0b4c9-59c7-7802-811d-5f9ce4d6dd89" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_01a0b4c9-59c7-759a-8c22-4ee373c22793" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_01a0b4c9-59c7-7802-811d-5f9ce4d6dd89" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease_01a0b4c9-59c7-7d40-bfa5-313db8abf6db" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_01a0b4c9-59c7-759a-8c22-4ee373c22793" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease_01a0b4c9-59c7-7d40-bfa5-313db8abf6db" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_01a0b4c9-59c7-78c4-9720-c24118883bb8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/CommitmentsandContingenciesDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#CommitmentsandContingenciesDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/CommitmentsandContingenciesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesLineItems_01a0b4c9-59c7-7c42-9071-4a0270753f1a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingenciesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesTable_01a0b4c9-59c7-700b-b214-3e738d440f6b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingenciesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LossContingenciesLineItems_01a0b4c9-59c7-7c42-9071-4a0270753f1a" xlink:to="loc_us-gaap_LossContingenciesTable_01a0b4c9-59c7-700b-b214-3e738d440f6b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseAxis_01a0b4c9-59c7-79b4-8ac4-caa484764279" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_LitigationCaseAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_01a0b4c9-59c7-700b-b214-3e738d440f6b" xlink:to="loc_srt_LitigationCaseAxis_01a0b4c9-59c7-79b4-8ac4-caa484764279" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_01a0b4c9-59c7-79b4-8ac4-caa484764279_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_LitigationCaseAxis_01a0b4c9-59c7-79b4-8ac4-caa484764279" xlink:to="loc_srt_LitigationCaseTypeDomain_01a0b4c9-59c7-79b4-8ac4-caa484764279_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_01a0b4c9-59c7-7aab-83ab-72d5cf4fc1f5" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_LitigationCaseAxis_01a0b4c9-59c7-79b4-8ac4-caa484764279" xlink:to="loc_srt_LitigationCaseTypeDomain_01a0b4c9-59c7-7aab-83ab-72d5cf4fc1f5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_HartelActionMember_01a0b4c9-59c7-7d9f-94cb-7553f2c6f5a2" xlink:href="slqt-20260930.xsd#slqt_HartelActionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_01a0b4c9-59c7-7aab-83ab-72d5cf4fc1f5" xlink:to="loc_slqt_HartelActionMember_01a0b4c9-59c7-7d9f-94cb-7553f2c6f5a2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_WestPalmBeachPolicePensionFundVSelectQuoteIncMember_01a0b4c9-59c7-7717-b585-8b5d7eb4cad5" xlink:href="slqt-20260930.xsd#slqt_WestPalmBeachPolicePensionFundVSelectQuoteIncMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_01a0b4c9-59c7-7aab-83ab-72d5cf4fc1f5" xlink:to="loc_slqt_WestPalmBeachPolicePensionFundVSelectQuoteIncMember_01a0b4c9-59c7-7717-b585-8b5d7eb4cad5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis_01a0b4c9-59c7-78fc-a897-ee5c82269b8f" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_TitleOfIndividualAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_01a0b4c9-59c7-700b-b214-3e738d440f6b" xlink:to="loc_srt_TitleOfIndividualAxis_01a0b4c9-59c7-78fc-a897-ee5c82269b8f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_01a0b4c9-59c7-78fc-a897-ee5c82269b8f_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_TitleOfIndividualAxis_01a0b4c9-59c7-78fc-a897-ee5c82269b8f" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_01a0b4c9-59c7-78fc-a897-ee5c82269b8f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_01a0b4c9-59c7-7bc9-9871-6bce23388e94" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_TitleOfIndividualAxis_01a0b4c9-59c7-78fc-a897-ee5c82269b8f" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_01a0b4c9-59c7-7bc9-9871-6bce23388e94" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ExecutiveOfficerMember_01a0b4c9-59c7-728c-9a61-00cb010ce363" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ExecutiveOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_01a0b4c9-59c7-7bc9-9871-6bce23388e94" xlink:to="loc_srt_ExecutiveOfficerMember_01a0b4c9-59c7-728c-9a61-00cb010ce363" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_CurrentAndFormerDirectorMember_01a0b4c9-59c7-772f-8d45-fb5aaebf4bd0" xlink:href="slqt-20260930.xsd#slqt_CurrentAndFormerDirectorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_01a0b4c9-59c7-7bc9-9871-6bce23388e94" xlink:to="loc_slqt_CurrentAndFormerDirectorMember_01a0b4c9-59c7-772f-8d45-fb5aaebf4bd0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNumberOfDefendants_01a0b4c9-59c7-795e-a6b0-3e5337abce47" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingencyNumberOfDefendants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_01a0b4c9-59c7-7c42-9071-4a0270753f1a" xlink:to="loc_us-gaap_LossContingencyNumberOfDefendants_01a0b4c9-59c7-795e-a6b0-3e5337abce47" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/ShareholdersEquityScheduleofCommonStockDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#ShareholdersEquityScheduleofCommonStockDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/ShareholdersEquityScheduleofCommonStockDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7687-9006-53098987d553" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-7f1b-bfe4-6f5744615cc5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7687-9006-53098987d553" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-7f1b-bfe4-6f5744615cc5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_01a0b4c9-59c7-7967-988e-4e3b1f422640" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-7f1b-bfe4-6f5744615cc5" xlink:to="loc_us-gaap_PlanNameAxis_01a0b4c9-59c7-7967-988e-4e3b1f422640" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_01a0b4c9-59c7-7967-988e-4e3b1f422640_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_01a0b4c9-59c7-7967-988e-4e3b1f422640" xlink:to="loc_us-gaap_PlanNameDomain_01a0b4c9-59c7-7967-988e-4e3b1f422640_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_01a0b4c9-59c7-7f01-8ba1-34d0471159bd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_01a0b4c9-59c7-7967-988e-4e3b1f422640" xlink:to="loc_us-gaap_PlanNameDomain_01a0b4c9-59c7-7f01-8ba1-34d0471159bd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_EmployeeStockPurchasePlan2020Member_01a0b4c9-59c7-7d3a-a490-6e91e32ecd65" xlink:href="slqt-20260930.xsd#slqt_EmployeeStockPurchasePlan2020Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_01a0b4c9-59c7-7f01-8ba1-34d0471159bd" xlink:to="loc_slqt_EmployeeStockPurchasePlan2020Member_01a0b4c9-59c7-7d3a-a490-6e91e32ecd65" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_A2020PlanMember_01a0b4c9-59c7-7354-a800-98d9650e67a0" xlink:href="slqt-20260930.xsd#slqt_A2020PlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_01a0b4c9-59c7-7f01-8ba1-34d0471159bd" xlink:to="loc_slqt_A2020PlanMember_01a0b4c9-59c7-7354-a800-98d9650e67a0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_A2003PlanMember_01a0b4c9-59c7-7bd0-8223-c61571fbf442" xlink:href="slqt-20260930.xsd#slqt_A2003PlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_01a0b4c9-59c7-7f01-8ba1-34d0471159bd" xlink:to="loc_slqt_A2003PlanMember_01a0b4c9-59c7-7bd0-8223-c61571fbf442" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_01a0b4c9-59c7-7776-a08a-5f61b185df1a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-7f1b-bfe4-6f5744615cc5" xlink:to="loc_us-gaap_StatementClassOfStockAxis_01a0b4c9-59c7-7776-a08a-5f61b185df1a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a0b4c9-59c7-7776-a08a-5f61b185df1a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a0b4c9-59c7-7776-a08a-5f61b185df1a" xlink:to="loc_us-gaap_ClassOfStockDomain_01a0b4c9-59c7-7776-a08a-5f61b185df1a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a0b4c9-59c7-7f9b-b367-8aff8d8e8d49" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a0b4c9-59c7-7776-a08a-5f61b185df1a" xlink:to="loc_us-gaap_ClassOfStockDomain_01a0b4c9-59c7-7f9b-b367-8aff8d8e8d49" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_01a0b4c9-59c7-7587-bf42-30ebade5a54d" 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_ClassOfStockDomain_01a0b4c9-59c7-7f9b-b367-8aff8d8e8d49" xlink:to="loc_us-gaap_CommonStockMember_01a0b4c9-59c7-7587-bf42-30ebade5a54d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_01a0b4c9-59c7-75de-84b8-a1359dad69b7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7687-9006-53098987d553" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_01a0b4c9-59c7-75de-84b8-a1359dad69b7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_01a0b4c9-59c7-7511-9dfc-34f2920f1249" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7687-9006-53098987d553" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_01a0b4c9-59c7-7511-9dfc-34f2920f1249" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/ShareholdersEquityNarrativeDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#ShareholdersEquityNarrativeDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/ShareholdersEquityNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-779e-8160-2773f08df05a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-779e-8160-2773f08df05a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_01a0b4c9-59c7-7982-9967-7caf508c1d1a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-779e-8160-2773f08df05a" xlink:to="loc_us-gaap_PlanNameAxis_01a0b4c9-59c7-7982-9967-7caf508c1d1a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_01a0b4c9-59c7-7982-9967-7caf508c1d1a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_01a0b4c9-59c7-7982-9967-7caf508c1d1a" xlink:to="loc_us-gaap_PlanNameDomain_01a0b4c9-59c7-7982-9967-7caf508c1d1a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_01a0b4c9-59c7-7552-90c7-82e8bc9e1f47" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_01a0b4c9-59c7-7982-9967-7caf508c1d1a" xlink:to="loc_us-gaap_PlanNameDomain_01a0b4c9-59c7-7552-90c7-82e8bc9e1f47" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_A2020PlanMember_01a0b4c9-59c7-7f96-a494-55609c72b57f" xlink:href="slqt-20260930.xsd#slqt_A2020PlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_01a0b4c9-59c7-7552-90c7-82e8bc9e1f47" xlink:to="loc_slqt_A2020PlanMember_01a0b4c9-59c7-7f96-a494-55609c72b57f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_A2003PlanMember_01a0b4c9-59c7-72a4-934b-ce51c4d1a001" xlink:href="slqt-20260930.xsd#slqt_A2003PlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_01a0b4c9-59c7-7552-90c7-82e8bc9e1f47" xlink:to="loc_slqt_A2003PlanMember_01a0b4c9-59c7-72a4-934b-ce51c4d1a001" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_EmployeeStockPurchasePlan2020Member_01a0b4c9-59c7-7d1d-b7ff-14b3fef02e95" xlink:href="slqt-20260930.xsd#slqt_EmployeeStockPurchasePlan2020Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_01a0b4c9-59c7-7552-90c7-82e8bc9e1f47" xlink:to="loc_slqt_EmployeeStockPurchasePlan2020Member_01a0b4c9-59c7-7d1d-b7ff-14b3fef02e95" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_01a0b4c9-59c7-7d48-9962-2eb34a556d3a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-779e-8160-2773f08df05a" xlink:to="loc_us-gaap_StatementClassOfStockAxis_01a0b4c9-59c7-7d48-9962-2eb34a556d3a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a0b4c9-59c7-7d48-9962-2eb34a556d3a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a0b4c9-59c7-7d48-9962-2eb34a556d3a" xlink:to="loc_us-gaap_ClassOfStockDomain_01a0b4c9-59c7-7d48-9962-2eb34a556d3a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a0b4c9-59c7-71dc-87c6-7924bac82ac9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a0b4c9-59c7-7d48-9962-2eb34a556d3a" xlink:to="loc_us-gaap_ClassOfStockDomain_01a0b4c9-59c7-71dc-87c6-7924bac82ac9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_01a0b4c9-59c7-7bfc-a50a-ddaebeb82422" 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_ClassOfStockDomain_01a0b4c9-59c7-71dc-87c6-7924bac82ac9" xlink:to="loc_us-gaap_CommonStockMember_01a0b4c9-59c7-7bfc-a50a-ddaebeb82422" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-7899-93d7-bed25bcce0be" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-779e-8160-2773f08df05a" xlink:to="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-7899-93d7-bed25bcce0be" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7899-93d7-bed25bcce0be_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-7899-93d7-bed25bcce0be" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7899-93d7-bed25bcce0be_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7347-8045-77710071e907" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-7899-93d7-bed25bcce0be" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7347-8045-77710071e907" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_IncentiveStockOptionsMember_01a0b4c9-59c7-7eb5-a7d2-c797e6b5809b" xlink:href="slqt-20260930.xsd#slqt_IncentiveStockOptionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7347-8045-77710071e907" xlink:to="loc_slqt_IncentiveStockOptionsMember_01a0b4c9-59c7-7eb5-a7d2-c797e6b5809b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_01a0b4c9-59c7-775d-aca3-1bc003309cff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7347-8045-77710071e907" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_01a0b4c9-59c7-775d-aca3-1bc003309cff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PriceVestedUnitsPVUsMember_01a0b4c9-59c7-7e9e-848e-9c333f038434" xlink:href="slqt-20260930.xsd#slqt_PriceVestedUnitsPVUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7347-8045-77710071e907" xlink:to="loc_slqt_PriceVestedUnitsPVUsMember_01a0b4c9-59c7-7e9e-848e-9c333f038434" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockMember_01a0b4c9-59c7-7d09-ab13-0ba4ec23469b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7347-8045-77710071e907" xlink:to="loc_us-gaap_EmployeeStockMember_01a0b4c9-59c7-7d09-ab13-0ba4ec23469b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_01a0b4c9-59c7-777c-8ec5-c07072308b25" 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_ScheduleOfStockByClassTable_01a0b4c9-59c7-779e-8160-2773f08df05a" xlink:to="loc_srt_RangeAxis_01a0b4c9-59c7-777c-8ec5-c07072308b25" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_01a0b4c9-59c7-777c-8ec5-c07072308b25_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_01a0b4c9-59c7-777c-8ec5-c07072308b25" xlink:to="loc_srt_RangeMember_01a0b4c9-59c7-777c-8ec5-c07072308b25_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_01a0b4c9-59c7-7486-90fc-90f75aa068ee" 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_01a0b4c9-59c7-777c-8ec5-c07072308b25" xlink:to="loc_srt_RangeMember_01a0b4c9-59c7-7486-90fc-90f75aa068ee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_01a0b4c9-59c7-788e-909a-0e7e3cc91b0c" 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_01a0b4c9-59c7-7486-90fc-90f75aa068ee" xlink:to="loc_srt_MinimumMember_01a0b4c9-59c7-788e-909a-0e7e3cc91b0c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_01a0b4c9-59c7-79b6-bced-2a7c2da354a4" 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_01a0b4c9-59c7-7486-90fc-90f75aa068ee" xlink:to="loc_srt_MaximumMember_01a0b4c9-59c7-79b6-bced-2a7c2da354a4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingAxis_01a0b4c9-59c7-7f5e-ba98-a4d098fe20ab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VestingAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-779e-8160-2773f08df05a" xlink:to="loc_us-gaap_VestingAxis_01a0b4c9-59c7-7f5e-ba98-a4d098fe20ab" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_01a0b4c9-59c7-7f5e-ba98-a4d098fe20ab_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VestingAxis_01a0b4c9-59c7-7f5e-ba98-a4d098fe20ab" xlink:to="loc_us-gaap_VestingDomain_01a0b4c9-59c7-7f5e-ba98-a4d098fe20ab_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_01a0b4c9-59c7-7dee-9171-d15a4778b519" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VestingAxis_01a0b4c9-59c7-7f5e-ba98-a4d098fe20ab" xlink:to="loc_us-gaap_VestingDomain_01a0b4c9-59c7-7dee-9171-d15a4778b519" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_01a0b4c9-59c7-715f-ba96-be2b51c22082" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationAwardTrancheOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_01a0b4c9-59c7-7dee-9171-d15a4778b519" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_01a0b4c9-59c7-715f-ba96-be2b51c22082" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_01a0b4c9-59c7-748a-9f6e-db7c9b07f85b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationAwardTrancheTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_01a0b4c9-59c7-7dee-9171-d15a4778b519" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_01a0b4c9-59c7-748a-9f6e-db7c9b07f85b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_01a0b4c9-59c7-7016-b99b-fdc604fbd084" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationAwardTrancheThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_01a0b4c9-59c7-7dee-9171-d15a4778b519" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_01a0b4c9-59c7-7016-b99b-fdc604fbd084" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfShareBasedCompensationPlans_01a0b4c9-59c7-70ba-9de5-d61aca675b4b" xlink:href="slqt-20260930.xsd#slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfShareBasedCompensationPlans"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfShareBasedCompensationPlans_01a0b4c9-59c7-70ba-9de5-d61aca675b4b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_01a0b4c9-59c7-7e54-938d-cb1262304600" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_01a0b4c9-59c7-7e54-938d-cb1262304600" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOutstandingStockMaximum_01a0b4c9-59c7-79d7-bfae-6ddbdc2ae5a0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOutstandingStockMaximum"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOutstandingStockMaximum_01a0b4c9-59c7-79d7-bfae-6ddbdc2ae5a0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_01a0b4c9-59c7-7a23-b390-6787f336130b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_01a0b4c9-59c7-7a23-b390-6787f336130b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardExercisePeriodAfterTermination_01a0b4c9-59c7-78c7-a2b3-3105a1dfab4d" xlink:href="slqt-20260930.xsd#slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardExercisePeriodAfterTermination"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardExercisePeriodAfterTermination_01a0b4c9-59c7-78c7-a2b3-3105a1dfab4d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardExercisePeriodAfterTerminationDueToDeathOrDisability_01a0b4c9-59c7-796c-8204-4b64442eca7f" xlink:href="slqt-20260930.xsd#slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardExercisePeriodAfterTerminationDueToDeathOrDisability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardExercisePeriodAfterTerminationDueToDeathOrDisability_01a0b4c9-59c7-796c-8204-4b64442eca7f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_01a0b4c9-59c7-7cbb-bd3e-29ff5f43a78b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_01a0b4c9-59c7-7cbb-bd3e-29ff5f43a78b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAwardInstallments_01a0b4c9-59c7-745b-8038-f2c8036d2369" xlink:href="slqt-20260930.xsd#slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAwardInstallments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAwardInstallments_01a0b4c9-59c7-745b-8038-f2c8036d2369" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_01a0b4c9-59c7-749c-abaf-bce893104aef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_01a0b4c9-59c7-749c-abaf-bce893104aef" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_01a0b4c9-59c7-7e6e-a0ef-662550976b16" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_01a0b4c9-59c7-7e6e-a0ef-662550976b16" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_01a0b4c9-59c7-7595-b227-0006ade80a4b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_01a0b4c9-59c7-7595-b227-0006ade80a4b" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_01a0b4c9-59c7-7c8a-a9c8-62a7f6a6ba98" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_01a0b4c9-59c7-7c8a-a9c8-62a7f6a6ba98" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_01a0b4c9-59c7-785c-8b9d-6973cf5bd5f3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_01a0b4c9-59c7-785c-8b9d-6973cf5bd5f3" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNumberOfTranches_01a0b4c9-59c7-7c27-84ab-cd0255c3235c" xlink:href="slqt-20260930.xsd#slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNumberOfTranches"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNumberOfTranches_01a0b4c9-59c7-7c27-84ab-cd0255c3235c" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_NumberOfConsecutiveTradingDaysForDeterminingTheWeightedAveragePriceOfShare_01a0b4c9-59c7-7768-a246-a138776ee3db" xlink:href="slqt-20260930.xsd#slqt_NumberOfConsecutiveTradingDaysForDeterminingTheWeightedAveragePriceOfShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_slqt_NumberOfConsecutiveTradingDaysForDeterminingTheWeightedAveragePriceOfShare_01a0b4c9-59c7-7768-a246-a138776ee3db" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1_01a0b4c9-59c7-77c3-9808-e85f3c211584" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1_01a0b4c9-59c7-77c3-9808-e85f3c211584" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNumberOfTranchesInStraightLineBasis_01a0b4c9-59c7-7567-8f5e-f16b279b0334" xlink:href="slqt-20260930.xsd#slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNumberOfTranchesInStraightLineBasis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodNumberOfTranchesInStraightLineBasis_01a0b4c9-59c7-7567-8f5e-f16b279b0334" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodStockPriceHurdle1_01a0b4c9-59c7-771b-a7bc-c244397e46a5" xlink:href="slqt-20260930.xsd#slqt_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodStockPriceHurdle1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_slqt_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodStockPriceHurdle1_01a0b4c9-59c7-771b-a7bc-c244397e46a5" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodStockPriceHurdle2_01a0b4c9-59c7-7ea5-900f-223d810b1dcd" xlink:href="slqt-20260930.xsd#slqt_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodStockPriceHurdle2"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_slqt_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodStockPriceHurdle2_01a0b4c9-59c7-7ea5-900f-223d810b1dcd" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumPurchasePriceOfCommonStockAsPercentOfCommonStockExerciseDateFairValuePercent_01a0b4c9-59c7-7a51-a7ef-7f97fed6f798" xlink:href="slqt-20260930.xsd#slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumPurchasePriceOfCommonStockAsPercentOfCommonStockExerciseDateFairValuePercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumPurchasePriceOfCommonStockAsPercentOfCommonStockExerciseDateFairValuePercent_01a0b4c9-59c7-7a51-a7ef-7f97fed6f798" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_01a0b4c9-59c7-7edd-889e-cdaa167dcea3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7fb1-8d68-860241a2538f" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_01a0b4c9-59c7-7edd-889e-cdaa167dcea3" xlink:type="arc" order="20"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/ShareholdersEquityScheduleofSharebasedCompensationDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#ShareholdersEquityScheduleofSharebasedCompensationDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/ShareholdersEquityScheduleofSharebasedCompensationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7584-9648-b09cc2fe1d52" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-7f2d-864d-a2c7498ce1ba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7584-9648-b09cc2fe1d52" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-7f2d-864d-a2c7498ce1ba" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-7070-a7f9-35ca91fa76d9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-7f2d-864d-a2c7498ce1ba" xlink:to="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-7070-a7f9-35ca91fa76d9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7070-a7f9-35ca91fa76d9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-7070-a7f9-35ca91fa76d9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7070-a7f9-35ca91fa76d9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7ee1-8459-6d0e657d96c2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-7070-a7f9-35ca91fa76d9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7ee1-8459-6d0e657d96c2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_IncentiveStockOptionsMember_01a0b4c9-59c7-7ba6-b5b1-eead85cf05e2" xlink:href="slqt-20260930.xsd#slqt_IncentiveStockOptionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7ee1-8459-6d0e657d96c2" xlink:to="loc_slqt_IncentiveStockOptionsMember_01a0b4c9-59c7-7ba6-b5b1-eead85cf05e2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_01a0b4c9-59c7-73a0-878e-68f279228d11" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7ee1-8459-6d0e657d96c2" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_01a0b4c9-59c7-73a0-878e-68f279228d11" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PriceVestedUnitsPVUsMember_01a0b4c9-59c7-7e3e-8605-c99154dcc347" xlink:href="slqt-20260930.xsd#slqt_PriceVestedUnitsPVUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7ee1-8459-6d0e657d96c2" xlink:to="loc_slqt_PriceVestedUnitsPVUsMember_01a0b4c9-59c7-7e3e-8605-c99154dcc347" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_01a0b4c9-59c7-72a8-9dad-e2124c8d73dc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7584-9648-b09cc2fe1d52" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_01a0b4c9-59c7-72a8-9dad-e2124c8d73dc" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/ShareholdersEquityScheduleofRestrictedStockUnitActivityDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#ShareholdersEquityScheduleofRestrictedStockUnitActivityDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/ShareholdersEquityScheduleofRestrictedStockUnitActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7f42-ac1f-e6d56e027242" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-7c4b-8bfd-8ca7cac5dc57" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7f42-ac1f-e6d56e027242" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-7c4b-8bfd-8ca7cac5dc57" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-7a0c-ad23-59570f8d60cd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-7c4b-8bfd-8ca7cac5dc57" xlink:to="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-7a0c-ad23-59570f8d60cd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7a0c-ad23-59570f8d60cd_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-7a0c-ad23-59570f8d60cd" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7a0c-ad23-59570f8d60cd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7430-906a-4de9ccc3e4a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-7a0c-ad23-59570f8d60cd" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7430-906a-4de9ccc3e4a5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_01a0b4c9-59c7-769a-8e78-93499e962461" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7430-906a-4de9ccc3e4a5" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_01a0b4c9-59c7-769a-8e78-93499e962461" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_01a0b4c9-59c7-7896-b05c-06109dafc641" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7f42-ac1f-e6d56e027242" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_01a0b4c9-59c7-7896-b05c-06109dafc641" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_01a0b4c9-59c7-7e95-8e63-ceaefd9ffef2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_01a0b4c9-59c7-7896-b05c-06109dafc641" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_01a0b4c9-59c7-7e95-8e63-ceaefd9ffef2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_01a0b4c9-59c7-778c-9b2f-c06ce9911012" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_01a0b4c9-59c7-7896-b05c-06109dafc641" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_01a0b4c9-59c7-778c-9b2f-c06ce9911012" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_01a0b4c9-59c7-7636-94ad-ecd684a2d598" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_01a0b4c9-59c7-7896-b05c-06109dafc641" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_01a0b4c9-59c7-7636-94ad-ecd684a2d598" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_01a0b4c9-59c7-742a-a049-dff97e717296" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_01a0b4c9-59c7-7896-b05c-06109dafc641" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_01a0b4c9-59c7-742a-a049-dff97e717296" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_01a0b4c9-59c7-7683-a30f-e469c6581527" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a0b4c9-59c7-78ae-a370-ff725330a1b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7f42-ac1f-e6d56e027242" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a0b4c9-59c7-78ae-a370-ff725330a1b6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_01a0b4c9-59c7-7c70-a96f-34df343eacb0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a0b4c9-59c7-78ae-a370-ff725330a1b6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_01a0b4c9-59c7-7c70-a96f-34df343eacb0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_01a0b4c9-59c7-72da-90d7-d3576a038d69" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a0b4c9-59c7-78ae-a370-ff725330a1b6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_01a0b4c9-59c7-72da-90d7-d3576a038d69" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_01a0b4c9-59c7-74b9-9e62-51b59620d61d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a0b4c9-59c7-78ae-a370-ff725330a1b6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_01a0b4c9-59c7-74b9-9e62-51b59620d61d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_01a0b4c9-59c7-782d-8267-70384030d3a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_01a0b4c9-59c7-78ae-a370-ff725330a1b6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_01a0b4c9-59c7-782d-8267-70384030d3a9" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_01a0b4c9-59c7-7799-9dad-e4aa1519b018" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/ShareholdersEquityScheduleofScheduleofPriceVestingUnitsDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#ShareholdersEquityScheduleofScheduleofPriceVestingUnitsDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/ShareholdersEquityScheduleofScheduleofPriceVestingUnitsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7b66-b695-3ca8e1a0aba6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-7004-9b29-1de520f46d53" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7b66-b695-3ca8e1a0aba6" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-7004-9b29-1de520f46d53" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-7e7d-804e-51bdd7fd8c6a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-7004-9b29-1de520f46d53" xlink:to="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-7e7d-804e-51bdd7fd8c6a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7e7d-804e-51bdd7fd8c6a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-7e7d-804e-51bdd7fd8c6a" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7e7d-804e-51bdd7fd8c6a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7b1a-b225-17a1954cdcb0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-7e7d-804e-51bdd7fd8c6a" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7b1a-b225-17a1954cdcb0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PriceVestedUnitsPVUsMember_01a0b4c9-59c7-725d-b8f4-301e016893cc" xlink:href="slqt-20260930.xsd#slqt_PriceVestedUnitsPVUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7b1a-b225-17a1954cdcb0" xlink:to="loc_slqt_PriceVestedUnitsPVUsMember_01a0b4c9-59c7-725d-b8f4-301e016893cc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingAxis_01a0b4c9-59c7-734b-b80b-264fb2702aee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VestingAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-7004-9b29-1de520f46d53" xlink:to="loc_us-gaap_VestingAxis_01a0b4c9-59c7-734b-b80b-264fb2702aee" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_01a0b4c9-59c7-734b-b80b-264fb2702aee_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VestingAxis_01a0b4c9-59c7-734b-b80b-264fb2702aee" xlink:to="loc_us-gaap_VestingDomain_01a0b4c9-59c7-734b-b80b-264fb2702aee_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_01a0b4c9-59c7-7273-99cb-b09e789d99b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VestingAxis_01a0b4c9-59c7-734b-b80b-264fb2702aee" xlink:to="loc_us-gaap_VestingDomain_01a0b4c9-59c7-7273-99cb-b09e789d99b6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_01a0b4c9-59c7-7d05-be61-2ff45c27d3d7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationAwardTrancheOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_01a0b4c9-59c7-7273-99cb-b09e789d99b6" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_01a0b4c9-59c7-7d05-be61-2ff45c27d3d7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_01a0b4c9-59c7-7ae5-9f1c-d3f936d91fe4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationAwardTrancheTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_01a0b4c9-59c7-7273-99cb-b09e789d99b6" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_01a0b4c9-59c7-7ae5-9f1c-d3f936d91fe4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_01a0b4c9-59c7-7649-9dee-68a66e190f21" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationAwardTrancheThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_01a0b4c9-59c7-7273-99cb-b09e789d99b6" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_01a0b4c9-59c7-7649-9dee-68a66e190f21" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_01a0b4c9-59c7-770d-9bb5-41906ab503b0" 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_ScheduleOfStockByClassTable_01a0b4c9-59c7-7004-9b29-1de520f46d53" xlink:to="loc_srt_RangeAxis_01a0b4c9-59c7-770d-9bb5-41906ab503b0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_01a0b4c9-59c7-770d-9bb5-41906ab503b0_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_01a0b4c9-59c7-770d-9bb5-41906ab503b0" xlink:to="loc_srt_RangeMember_01a0b4c9-59c7-770d-9bb5-41906ab503b0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_01a0b4c9-59c7-7fc6-a9fd-d584eb4b3355" 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_01a0b4c9-59c7-770d-9bb5-41906ab503b0" xlink:to="loc_srt_RangeMember_01a0b4c9-59c7-7fc6-a9fd-d584eb4b3355" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_01a0b4c9-59c7-7768-add3-5bb349835e92" 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_01a0b4c9-59c7-7fc6-a9fd-d584eb4b3355" xlink:to="loc_srt_MinimumMember_01a0b4c9-59c7-7768-add3-5bb349835e92" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_01a0b4c9-59c7-78e5-95a8-3753fd4b0ee7" 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_01a0b4c9-59c7-7fc6-a9fd-d584eb4b3355" xlink:to="loc_srt_MaximumMember_01a0b4c9-59c7-78e5-95a8-3753fd4b0ee7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_01a0b4c9-59c7-7b52-b500-a7f4d4bf1b9c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7b66-b695-3ca8e1a0aba6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_01a0b4c9-59c7-7b52-b500-a7f4d4bf1b9c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_01a0b4c9-59c7-737c-9931-95c2c819180c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7b66-b695-3ca8e1a0aba6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_01a0b4c9-59c7-737c-9931-95c2c819180c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_01a0b4c9-59c7-731d-8f12-9d25e8696938" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7b66-b695-3ca8e1a0aba6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_01a0b4c9-59c7-731d-8f12-9d25e8696938" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1_01a0b4c9-59c7-7a9e-bdf1-a22d7c8dcbb3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-7b66-b695-3ca8e1a0aba6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1_01a0b4c9-59c7-7a9e-bdf1-a22d7c8dcbb3" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/ShareholdersEquityScheduleofFairValueAssumptionsDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#ShareholdersEquityScheduleofFairValueAssumptionsDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/ShareholdersEquityScheduleofFairValueAssumptionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-74a1-96a8-3645eac81b89" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-7531-9769-612cb5734984" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-74a1-96a8-3645eac81b89" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-7531-9769-612cb5734984" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-74f2-a097-43bd06d27ba4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_01a0b4c9-59c7-7531-9769-612cb5734984" xlink:to="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-74f2-a097-43bd06d27ba4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-74f2-a097-43bd06d27ba4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-74f2-a097-43bd06d27ba4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-74f2-a097-43bd06d27ba4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7074-a97f-40e1bf81834f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-74f2-a097-43bd06d27ba4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7074-a97f-40e1bf81834f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PriceVestedUnitsPVUsMember_01a0b4c9-59c7-7f32-9ffc-1d1553b3da23" xlink:href="slqt-20260930.xsd#slqt_PriceVestedUnitsPVUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-7074-a97f-40e1bf81834f" xlink:to="loc_slqt_PriceVestedUnitsPVUsMember_01a0b4c9-59c7-7f32-9ffc-1d1553b3da23" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePricePerShare_01a0b4c9-59c7-7984-a63c-50305c4bab23" xlink:href="slqt-20260930.xsd#slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-74a1-96a8-3645eac81b89" xlink:to="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePricePerShare_01a0b4c9-59c7-7984-a63c-50305c4bab23" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_01a0b4c9-59c7-7d2f-9ca5-f40909799f46" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-74a1-96a8-3645eac81b89" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_01a0b4c9-59c7-7d2f-9ca5-f40909799f46" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_01a0b4c9-59c7-7507-aedc-5d327ac0dac6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-74a1-96a8-3645eac81b89" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_01a0b4c9-59c7-7507-aedc-5d327ac0dac6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsCostOfEquityRate_01a0b4c9-59c7-7361-bddb-b603cad2ca4f" xlink:href="slqt-20260930.xsd#slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsCostOfEquityRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-74a1-96a8-3645eac81b89" xlink:to="loc_slqt_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsCostOfEquityRate_01a0b4c9-59c7-7361-bddb-b603cad2ca4f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_01a0b4c9-59c7-79eb-8349-753c5f82e436" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_01a0b4c9-59c7-74a1-96a8-3645eac81b89" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_01a0b4c9-59c7-79eb-8349-753c5f82e436" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/ShareholdersEquityScheduleofPriceVestedStockUnitActivityDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#ShareholdersEquityScheduleofPriceVestedStockUnitActivityDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/ShareholdersEquityScheduleofPriceVestedStockUnitActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualShareBasedPaymentsLineItems_01a0b4c9-59c7-7a87-8b42-85d32229dba0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredCompensationArrangementWithIndividualShareBasedPaymentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualShareBasedPaymentsTable_01a0b4c9-59c7-7831-86dd-db8fe27acfd0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualShareBasedPaymentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualShareBasedPaymentsLineItems_01a0b4c9-59c7-7a87-8b42-85d32229dba0" xlink:to="loc_us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualShareBasedPaymentsTable_01a0b4c9-59c7-7831-86dd-db8fe27acfd0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-723d-b048-6a5f19014573" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualShareBasedPaymentsTable_01a0b4c9-59c7-7831-86dd-db8fe27acfd0" xlink:to="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-723d-b048-6a5f19014573" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-723d-b048-6a5f19014573_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-723d-b048-6a5f19014573" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-723d-b048-6a5f19014573_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-722c-9c42-fd47ebece269" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_01a0b4c9-59c7-723d-b048-6a5f19014573" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-722c-9c42-fd47ebece269" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PriceVestedUnitsPVUsMember_01a0b4c9-59c7-7df5-a731-4fe2d1c8382d" xlink:href="slqt-20260930.xsd#slqt_PriceVestedUnitsPVUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-59c7-722c-9c42-fd47ebece269" xlink:to="loc_slqt_PriceVestedUnitsPVUsMember_01a0b4c9-59c7-7df5-a731-4fe2d1c8382d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfSharesRollForward_01a0b4c9-59c7-71a0-9e25-2a90eb193c0d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfSharesRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualShareBasedPaymentsLineItems_01a0b4c9-59c7-7a87-8b42-85d32229dba0" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfSharesRollForward_01a0b4c9-59c7-71a0-9e25-2a90eb193c0d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_01a0b4c9-59c7-7495-93fb-f047ce42af9f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfSharesRollForward_01a0b4c9-59c7-71a0-9e25-2a90eb193c0d" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_01a0b4c9-59c7-7495-93fb-f047ce42af9f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_01a0b4c9-59c7-7786-b748-163a531fe4e1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfSharesRollForward_01a0b4c9-59c7-71a0-9e25-2a90eb193c0d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_01a0b4c9-59c7-7786-b748-163a531fe4e1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares_01a0b4c9-59c7-7fab-86b9-8382b29cb026" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfSharesRollForward_01a0b4c9-59c7-71a0-9e25-2a90eb193c0d" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares_01a0b4c9-59c7-7fab-86b9-8382b29cb026" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares_01a0b4c9-59c7-756a-8a98-0dfdbc6bf5b3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfSharesRollForward_01a0b4c9-59c7-71a0-9e25-2a90eb193c0d" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares_01a0b4c9-59c7-756a-8a98-0dfdbc6bf5b3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_01a0b4c9-59c7-73e5-81a3-a994c713223e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_01a0b4c9-59c7-7d98-a6e2-01dc729e6e51" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualShareBasedPaymentsLineItems_01a0b4c9-59c7-7a87-8b42-85d32229dba0" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_01a0b4c9-59c7-7d98-a6e2-01dc729e6e51" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue_01a0b4c9-59c7-75d6-85d5-f4dcd8f31626" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_01a0b4c9-59c7-7d98-a6e2-01dc729e6e51" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue_01a0b4c9-59c7-75d6-85d5-f4dcd8f31626" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_01a0b4c9-59c7-7bfa-9d38-175138c9447f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_01a0b4c9-59c7-7d98-a6e2-01dc729e6e51" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_01a0b4c9-59c7-7bfa-9d38-175138c9447f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue_01a0b4c9-59c7-7181-a922-8ec1c435706a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_01a0b4c9-59c7-7d98-a6e2-01dc729e6e51" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue_01a0b4c9-59c7-7181-a922-8ec1c435706a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue_01a0b4c9-59c7-7f9f-b77b-dabd6d077539" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_01a0b4c9-59c7-7d98-a6e2-01dc729e6e51" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue_01a0b4c9-59c7-7f9f-b77b-dabd6d077539" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue_01a0b4c9-59c7-7a61-afac-94e7c20c4d57" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/NETLOSSPERSHARENarrativeDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#NETLOSSPERSHARENarrativeDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/NETLOSSPERSHARENarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasicLineItems_01a0b4c9-5a79-7812-a98f-34706d55e3cb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareBasicLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_01a0b4c9-5a79-7624-bfaa-5980aa642b9d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_01a0b4c9-5a79-7812-a98f-34706d55e3cb" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_01a0b4c9-5a79-7624-bfaa-5980aa642b9d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-5a79-7771-83e5-09dc58dd2065" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_01a0b4c9-5a79-7624-bfaa-5980aa642b9d" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-5a79-7771-83e5-09dc58dd2065" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-5a79-7771-83e5-09dc58dd2065_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-5a79-7771-83e5-09dc58dd2065" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-5a79-7771-83e5-09dc58dd2065_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-5a79-7ef8-92d8-a44c4d4fc885" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_01a0b4c9-5a79-7771-83e5-09dc58dd2065" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-5a79-7ef8-92d8-a44c4d4fc885" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorNonConvertiblePreferredStockWarrantMember_01a0b4c9-5a79-7e55-99fb-7f5e2b198b87" xlink:href="slqt-20260930.xsd#slqt_SeniorNonConvertiblePreferredStockWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_01a0b4c9-5a79-7ef8-92d8-a44c4d4fc885" xlink:to="loc_slqt_SeniorNonConvertiblePreferredStockWarrantMember_01a0b4c9-5a79-7e55-99fb-7f5e2b198b87" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingAxis_01a0b4c9-5a79-70f5-9033-ab5cfcd9b750" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VestingAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_01a0b4c9-5a79-7624-bfaa-5980aa642b9d" xlink:to="loc_us-gaap_VestingAxis_01a0b4c9-5a79-70f5-9033-ab5cfcd9b750" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_01a0b4c9-5a79-70f5-9033-ab5cfcd9b750_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VestingAxis_01a0b4c9-5a79-70f5-9033-ab5cfcd9b750" xlink:to="loc_us-gaap_VestingDomain_01a0b4c9-5a79-70f5-9033-ab5cfcd9b750_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_01a0b4c9-5a79-7dc1-b591-0e4e576ba109" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VestingAxis_01a0b4c9-5a79-70f5-9033-ab5cfcd9b750" xlink:to="loc_us-gaap_VestingDomain_01a0b4c9-5a79-7dc1-b591-0e4e576ba109" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_01a0b4c9-5a79-7128-84ba-e2f75054d7db" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationAwardTrancheOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_01a0b4c9-5a79-7dc1-b591-0e4e576ba109" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_01a0b4c9-5a79-7128-84ba-e2f75054d7db" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_01a0b4c9-5a79-7987-96dc-38ffc2448770" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_01a0b4c9-5a79-7812-a98f-34706d55e3cb" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_01a0b4c9-5a79-7987-96dc-38ffc2448770" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/NETLOSSPERSHAREScheduleofAntidilutiveSecuritiesExcludedfromComputationofIncomeLossPerShareDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#NETLOSSPERSHAREScheduleofAntidilutiveSecuritiesExcludedfromComputationofIncomeLossPerShareDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/NETLOSSPERSHAREScheduleofAntidilutiveSecuritiesExcludedfromComputationofIncomeLossPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_01a0b4c9-5a79-746d-969a-b3ee47994dd3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_01a0b4c9-5a79-7429-913e-19a2da11a3cf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_01a0b4c9-5a79-746d-969a-b3ee47994dd3" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_01a0b4c9-5a79-7429-913e-19a2da11a3cf" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_01a0b4c9-5a79-7437-97cd-c76c2908bf54" 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_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_01a0b4c9-5a79-7429-913e-19a2da11a3cf" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_01a0b4c9-5a79-7437-97cd-c76c2908bf54" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_01a0b4c9-5a79-7437-97cd-c76c2908bf54_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_01a0b4c9-5a79-7437-97cd-c76c2908bf54" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_01a0b4c9-5a79-7437-97cd-c76c2908bf54_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_01a0b4c9-5a79-7030-883c-1f6cf1c14142" 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_01a0b4c9-5a79-7437-97cd-c76c2908bf54" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_01a0b4c9-5a79-7030-883c-1f6cf1c14142" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_01a0b4c9-5a79-79c1-b982-97d0c554d871" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_01a0b4c9-5a79-7030-883c-1f6cf1c14142" xlink:to="loc_us-gaap_EmployeeStockOptionMember_01a0b4c9-5a79-79c1-b982-97d0c554d871" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantMember_01a0b4c9-5a79-7077-9232-3de6e57700e1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_01a0b4c9-5a79-7030-883c-1f6cf1c14142" xlink:to="loc_us-gaap_WarrantMember_01a0b4c9-5a79-7077-9232-3de6e57700e1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_01a0b4c9-5a79-7e38-9320-2ee058f04a45" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_01a0b4c9-5a79-7429-913e-19a2da11a3cf" xlink:to="loc_us-gaap_AwardTypeAxis_01a0b4c9-5a79-7e38-9320-2ee058f04a45" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-5a79-7e38-9320-2ee058f04a45_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_01a0b4c9-5a79-7e38-9320-2ee058f04a45" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-5a79-7e38-9320-2ee058f04a45_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-5a79-757f-89c4-36aa8e04ee5f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_01a0b4c9-5a79-7e38-9320-2ee058f04a45" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-5a79-757f-89c4-36aa8e04ee5f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_01a0b4c9-5a79-7702-adec-a59f5a0be03a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-5a79-757f-89c4-36aa8e04ee5f" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_01a0b4c9-5a79-7702-adec-a59f5a0be03a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_PriceVestedUnitsPVUsMember_01a0b4c9-5a79-7fe8-bd25-ae7dc70f2b8f" xlink:href="slqt-20260930.xsd#slqt_PriceVestedUnitsPVUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_01a0b4c9-5a79-757f-89c4-36aa8e04ee5f" xlink:to="loc_slqt_PriceVestedUnitsPVUsMember_01a0b4c9-5a79-7fe8-bd25-ae7dc70f2b8f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_01a0b4c9-5a79-7019-a8a1-bc8134bdb38a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_01a0b4c9-5a79-746d-969a-b3ee47994dd3" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_01a0b4c9-5a79-7019-a8a1-bc8134bdb38a" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/SEGMENTINFORMATIONNarrativeDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#SEGMENTINFORMATIONNarrativeDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/SEGMENTINFORMATIONNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-797e-9919-b8006e0839c4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a0b4c9-5a79-73c7-a9b9-2ecf251fae85" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-797e-9919-b8006e0839c4" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a0b4c9-5a79-73c7-a9b9-2ecf251fae85" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_01a0b4c9-5a79-7ee4-9657-d93505af4523" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a0b4c9-5a79-73c7-a9b9-2ecf251fae85" xlink:to="loc_srt_MajorCustomersAxis_01a0b4c9-5a79-7ee4-9657-d93505af4523" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_01a0b4c9-5a79-7ee4-9657-d93505af4523_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_01a0b4c9-5a79-7ee4-9657-d93505af4523" xlink:to="loc_srt_NameOfMajorCustomerDomain_01a0b4c9-5a79-7ee4-9657-d93505af4523_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_01a0b4c9-5a79-7b01-b0a6-ca35851c210f" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_01a0b4c9-5a79-7ee4-9657-d93505af4523" xlink:to="loc_srt_NameOfMajorCustomerDomain_01a0b4c9-5a79-7b01-b0a6-ca35851c210f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_MajorCustomerOneMember_01a0b4c9-5a79-74f4-950d-948fbfa7fd09" xlink:href="slqt-20260930.xsd#slqt_MajorCustomerOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_01a0b4c9-5a79-7b01-b0a6-ca35851c210f" xlink:to="loc_slqt_MajorCustomerOneMember_01a0b4c9-5a79-74f4-950d-948fbfa7fd09" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_MajorCustomerThreeMember_01a0b4c9-5a79-7f39-a775-17c3d2a9f575" xlink:href="slqt-20260930.xsd#slqt_MajorCustomerThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_01a0b4c9-5a79-7b01-b0a6-ca35851c210f" xlink:to="loc_slqt_MajorCustomerThreeMember_01a0b4c9-5a79-7f39-a775-17c3d2a9f575" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_01a0b4c9-5a79-7c22-b070-2433ee34c94a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a0b4c9-5a79-73c7-a9b9-2ecf251fae85" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_01a0b4c9-5a79-7c22-b070-2433ee34c94a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_01a0b4c9-5a79-7c22-b070-2433ee34c94a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_01a0b4c9-5a79-7c22-b070-2433ee34c94a" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_01a0b4c9-5a79-7c22-b070-2433ee34c94a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_01a0b4c9-5a79-7207-a3bc-94b1cb10f3d4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_01a0b4c9-5a79-7c22-b070-2433ee34c94a" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_01a0b4c9-5a79-7207-a3bc-94b1cb10f3d4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerMember_01a0b4c9-5a79-7542-a07c-7200e27a41b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_01a0b4c9-5a79-7207-a3bc-94b1cb10f3d4" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerMember_01a0b4c9-5a79-7542-a07c-7200e27a41b6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_01a0b4c9-5a79-7136-9416-af3939c2fa30" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a0b4c9-5a79-73c7-a9b9-2ecf251fae85" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_01a0b4c9-5a79-7136-9416-af3939c2fa30" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_01a0b4c9-5a79-7136-9416-af3939c2fa30_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_01a0b4c9-5a79-7136-9416-af3939c2fa30" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_01a0b4c9-5a79-7136-9416-af3939c2fa30_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_01a0b4c9-5a79-778e-b25c-c6fa62e83754" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_01a0b4c9-5a79-7136-9416-af3939c2fa30" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_01a0b4c9-5a79-778e-b25c-c6fa62e83754" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_01a0b4c9-5a79-7d7a-84fc-5053c9f8f986" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_01a0b4c9-5a79-778e-b25c-c6fa62e83754" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_01a0b4c9-5a79-7d7a-84fc-5053c9f8f986" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_01a0b4c9-5a79-7d7d-89e0-ca34b693d012" 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_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-797e-9919-b8006e0839c4" xlink:to="loc_us-gaap_NumberOfReportableSegments_01a0b4c9-5a79-7d7d-89e0-ca34b693d012" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_01a0b4c9-5a79-778a-8201-7c2bca1cd8fd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-797e-9919-b8006e0839c4" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_01a0b4c9-5a79-778a-8201-7c2bca1cd8fd" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/SEGMENTINFORMATIONScheduleofConsolidatedRevenueDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#SEGMENTINFORMATIONScheduleofConsolidatedRevenueDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/SEGMENTINFORMATIONScheduleofConsolidatedRevenueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7f7b-ba9e-127b84f4cf2e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a0b4c9-5a79-79f4-89de-9c9752fae2c0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7f7b-ba9e-127b84f4cf2e" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a0b4c9-5a79-79f4-89de-9c9752fae2c0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_01a0b4c9-5a79-71be-a327-b487ef24d39f" 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_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a0b4c9-5a79-79f4-89de-9c9752fae2c0" xlink:to="loc_srt_ConsolidationItemsAxis_01a0b4c9-5a79-71be-a327-b487ef24d39f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_01a0b4c9-5a79-71be-a327-b487ef24d39f_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_01a0b4c9-5a79-71be-a327-b487ef24d39f" xlink:to="loc_srt_ConsolidationItemsDomain_01a0b4c9-5a79-71be-a327-b487ef24d39f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_01a0b4c9-5a79-7c6b-add5-4360f02023f3" 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_01a0b4c9-5a79-71be-a327-b487ef24d39f" xlink:to="loc_srt_ConsolidationItemsDomain_01a0b4c9-5a79-7c6b-add5-4360f02023f3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_CorporateAndEliminationsMember_01a0b4c9-5a79-7a55-a393-706b5398311f" xlink:href="slqt-20260930.xsd#slqt_CorporateAndEliminationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_01a0b4c9-5a79-7c6b-add5-4360f02023f3" xlink:to="loc_slqt_CorporateAndEliminationsMember_01a0b4c9-5a79-7a55-a393-706b5398311f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntersegmentEliminationMember_01a0b4c9-5a79-7882-89d1-048170c19e97" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntersegmentEliminationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_01a0b4c9-5a79-7c6b-add5-4360f02023f3" xlink:to="loc_us-gaap_IntersegmentEliminationMember_01a0b4c9-5a79-7882-89d1-048170c19e97" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_01a0b4c9-5a79-7d5a-8bac-95558197f060" 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_01a0b4c9-5a79-7c6b-add5-4360f02023f3" xlink:to="loc_us-gaap_OperatingSegmentsMember_01a0b4c9-5a79-7d5a-8bac-95558197f060" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateNonSegmentMember_01a0b4c9-5a79-73b6-8e56-418f065f54e5" 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_01a0b4c9-5a79-7c6b-add5-4360f02023f3" xlink:to="loc_us-gaap_CorporateNonSegmentMember_01a0b4c9-5a79-73b6-8e56-418f065f54e5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_01a0b4c9-5a79-73b3-8bc7-2ac799157ad4" 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_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a0b4c9-5a79-79f4-89de-9c9752fae2c0" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_01a0b4c9-5a79-73b3-8bc7-2ac799157ad4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_01a0b4c9-5a79-73b3-8bc7-2ac799157ad4_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_01a0b4c9-5a79-73b3-8bc7-2ac799157ad4" xlink:to="loc_us-gaap_SegmentDomain_01a0b4c9-5a79-73b3-8bc7-2ac799157ad4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_01a0b4c9-5a79-7eb0-9a47-0ab0f4ed131c" 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_01a0b4c9-5a79-73b3-8bc7-2ac799157ad4" xlink:to="loc_us-gaap_SegmentDomain_01a0b4c9-5a79-7eb0-9a47-0ab0f4ed131c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorSegmentMember_01a0b4c9-5a79-791f-a194-eb8e7a6005dd" xlink:href="slqt-20260930.xsd#slqt_SeniorSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_01a0b4c9-5a79-7eb0-9a47-0ab0f4ed131c" xlink:to="loc_slqt_SeniorSegmentMember_01a0b4c9-5a79-791f-a194-eb8e7a6005dd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_HealthcareServicesSegmentMember_01a0b4c9-5a79-701d-af52-797e07c131ea" xlink:href="slqt-20260930.xsd#slqt_HealthcareServicesSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_01a0b4c9-5a79-7eb0-9a47-0ab0f4ed131c" xlink:to="loc_slqt_HealthcareServicesSegmentMember_01a0b4c9-5a79-701d-af52-797e07c131ea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_LifeSegmentMember_01a0b4c9-5a79-77ae-9480-60d64243a1ff" xlink:href="slqt-20260930.xsd#slqt_LifeSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_01a0b4c9-5a79-7eb0-9a47-0ab0f4ed131c" xlink:to="loc_slqt_LifeSegmentMember_01a0b4c9-5a79-77ae-9480-60d64243a1ff" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_01a0b4c9-5a79-734e-9b21-0fc9a0d70468" 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_SegmentReportingInformationLineItems_01a0b4c9-5a79-7f7b-ba9e-127b84f4cf2e" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_01a0b4c9-5a79-734e-9b21-0fc9a0d70468" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueNotFromContractWithCustomerOther_01a0b4c9-5a79-7e05-b996-ae82279df8e3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueNotFromContractWithCustomerOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7f7b-ba9e-127b84f4cf2e" xlink:to="loc_us-gaap_RevenueNotFromContractWithCustomerOther_01a0b4c9-5a79-7e05-b996-ae82279df8e3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_01a0b4c9-5a79-74ef-92cb-3756874129f7" 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_SegmentReportingInformationLineItems_01a0b4c9-5a79-7f7b-ba9e-127b84f4cf2e" xlink:to="loc_us-gaap_Revenues_01a0b4c9-5a79-74ef-92cb-3756874129f7" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://selectquote.com/role/SEGMENTINFORMATIONScheduleofSegmentReportingInformationDetails" xlink:type="simple" xlink:href="slqt-20260930.xsd#SEGMENTINFORMATIONScheduleofSegmentReportingInformationDetails"/>
  <link:definitionLink xlink:role="http://selectquote.com/role/SEGMENTINFORMATIONScheduleofSegmentReportingInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a0b4c9-5a79-7248-a1ba-415137a449d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a0b4c9-5a79-7248-a1ba-415137a449d1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_01a0b4c9-5a79-7e00-af3b-c990de2ead89" 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_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a0b4c9-5a79-7248-a1ba-415137a449d1" xlink:to="loc_srt_ConsolidationItemsAxis_01a0b4c9-5a79-7e00-af3b-c990de2ead89" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_01a0b4c9-5a79-7e00-af3b-c990de2ead89_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_01a0b4c9-5a79-7e00-af3b-c990de2ead89" xlink:to="loc_srt_ConsolidationItemsDomain_01a0b4c9-5a79-7e00-af3b-c990de2ead89_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_01a0b4c9-5a79-7cd1-aa5e-820959bdd4ae" 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_01a0b4c9-5a79-7e00-af3b-c990de2ead89" xlink:to="loc_srt_ConsolidationItemsDomain_01a0b4c9-5a79-7cd1-aa5e-820959bdd4ae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_01a0b4c9-5a79-76de-ba51-bc0f9209041e" 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_01a0b4c9-5a79-7cd1-aa5e-820959bdd4ae" xlink:to="loc_us-gaap_OperatingSegmentsMember_01a0b4c9-5a79-76de-ba51-bc0f9209041e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_01a0b4c9-5a79-71e6-be76-cefc6d5e4bde" 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_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_01a0b4c9-5a79-7248-a1ba-415137a449d1" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_01a0b4c9-5a79-71e6-be76-cefc6d5e4bde" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_01a0b4c9-5a79-71e6-be76-cefc6d5e4bde_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_01a0b4c9-5a79-71e6-be76-cefc6d5e4bde" xlink:to="loc_us-gaap_SegmentDomain_01a0b4c9-5a79-71e6-be76-cefc6d5e4bde_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_01a0b4c9-5a79-7ac5-869a-756a92b6e05b" 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_01a0b4c9-5a79-71e6-be76-cefc6d5e4bde" xlink:to="loc_us-gaap_SegmentDomain_01a0b4c9-5a79-7ac5-869a-756a92b6e05b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeniorSegmentMember_01a0b4c9-5a79-7d70-bee1-490dd2fe74e6" xlink:href="slqt-20260930.xsd#slqt_SeniorSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_01a0b4c9-5a79-7ac5-869a-756a92b6e05b" xlink:to="loc_slqt_SeniorSegmentMember_01a0b4c9-5a79-7d70-bee1-490dd2fe74e6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_HealthcareServicesSegmentMember_01a0b4c9-5a79-7f1d-8e26-9ee9ec4532ed" xlink:href="slqt-20260930.xsd#slqt_HealthcareServicesSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_01a0b4c9-5a79-7ac5-869a-756a92b6e05b" xlink:to="loc_slqt_HealthcareServicesSegmentMember_01a0b4c9-5a79-7f1d-8e26-9ee9ec4532ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_LifeSegmentMember_01a0b4c9-5a79-7aaf-ab99-9aa3a9aa529b" xlink:href="slqt-20260930.xsd#slqt_LifeSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_01a0b4c9-5a79-7ac5-869a-756a92b6e05b" xlink:to="loc_slqt_LifeSegmentMember_01a0b4c9-5a79-7aaf-ab99-9aa3a9aa529b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_01a0b4c9-5a79-763d-9822-dab8fc477817" 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_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_01a0b4c9-5a79-763d-9822-dab8fc477817" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_CostOfSales_01a0b4c9-5a79-797e-9295-a7a74157dd4f" xlink:href="slqt-20260930.xsd#slqt_CostOfSales"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_slqt_CostOfSales_01a0b4c9-5a79-797e-9295-a7a74157dd4f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_01a0b4c9-5a79-7b8d-8097-466c6b4d1a3c" 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_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_01a0b4c9-5a79-7b8d-8097-466c6b4d1a3c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketingAndAdvertisingExpense_01a0b4c9-5a79-70e7-920e-ed18f75b705e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MarketingAndAdvertisingExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_us-gaap_MarketingAndAdvertisingExpense_01a0b4c9-5a79-70e7-920e-ed18f75b705e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InformationTechnologyAndDataProcessing_01a0b4c9-5a79-7daf-b6e8-e098240fa20b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InformationTechnologyAndDataProcessing"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_us-gaap_InformationTechnologyAndDataProcessing_01a0b4c9-5a79-7daf-b6e8-e098240fa20b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_01a0b4c9-5a79-7c59-bb24-bb03d9dc34f3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_01a0b4c9-5a79-7c59-bb24-bb03d9dc34f3" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_AdjustedEBITDA_01a0b4c9-5a79-70c7-b0fb-a7c12dcc56a0" xlink:href="slqt-20260930.xsd#slqt_AdjustedEBITDA"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_slqt_AdjustedEBITDA_01a0b4c9-5a79-70c7-b0fb-a7c12dcc56a0" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_AllOtherAdjustedEBITDA_01a0b4c9-5a79-7dc1-aa63-68f9b1f79599" xlink:href="slqt-20260930.xsd#slqt_AllOtherAdjustedEBITDA"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_slqt_AllOtherAdjustedEBITDA_01a0b4c9-5a79-7dc1-aa63-68f9b1f79599" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherExpenses_01a0b4c9-5a79-7c17-be63-d2ec921a96d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_us-gaap_OtherExpenses_01a0b4c9-5a79-7c17-be63-d2ec921a96d1" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeBenefitsAndShareBasedCompensation_01a0b4c9-5a79-743a-a9f6-22008ea84af4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeBenefitsAndShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_us-gaap_EmployeeBenefitsAndShareBasedCompensation_01a0b4c9-5a79-743a-a9f6-22008ea84af4" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_SeveranceAndOtherNonRecurringTransactionCosts_01a0b4c9-5a79-7eb7-8666-0005fc2a6bfb" xlink:href="slqt-20260930.xsd#slqt_SeveranceAndOtherNonRecurringTransactionCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_slqt_SeveranceAndOtherNonRecurringTransactionCosts_01a0b4c9-5a79-7eb7-8666-0005fc2a6bfb" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_01a0b4c9-5a79-738b-85a6-bb80256b271f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_01a0b4c9-5a79-738b-85a6-bb80256b271f" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_GainLossOnDisposalOfPropertyEquipmentAndSoftwareNet_01a151e5-261b-72a3-99f1-39530defdd1e" xlink:href="slqt-20260930.xsd#slqt_GainLossOnDisposalOfPropertyEquipmentAndSoftwareNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_slqt_GainLossOnDisposalOfPropertyEquipmentAndSoftwareNet_01a151e5-261b-72a3-99f1-39530defdd1e" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_01a0b4c9-5a79-7dca-bc04-58ae876f50b4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_01a0b4c9-5a79-7dca-bc04-58ae876f50b4" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_01a1115e-3067-7c25-9f77-b1a0285cd733" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_us-gaap_InterestExpenseNonoperating_01a1115e-3067-7c25-9f77-b1a0285cd733" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_01a0b4c9-5a79-74ce-a837-5c6958ec0f50" 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_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_01a0b4c9-5a79-74ce-a837-5c6958ec0f50" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_UnallocatedCorporateExpenses_01a0b4c9-5a79-7b52-a093-a5e2149ea9ea" xlink:href="slqt-20260930.xsd#slqt_UnallocatedCorporateExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_slqt_UnallocatedCorporateExpenses_01a0b4c9-5a79-7b52-a093-a5e2149ea9ea" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfessionalAndContractServicesExpense_01a0b4c9-5a79-7576-9c43-e029b73df1f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfessionalAndContractServicesExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_us-gaap_ProfessionalAndContractServicesExpense_01a0b4c9-5a79-7576-9c43-e029b73df1f2" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherGeneralExpense_01a0b4c9-5a79-7e13-b557-c39d220daa7b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherGeneralExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_us-gaap_OtherGeneralExpense_01a0b4c9-5a79-7e13-b557-c39d220daa7b" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_slqt_DebtInstrumentFinancingTransactionCosts_01a0b4c9-5a79-7399-a776-8f1a67c595be" xlink:href="slqt-20260930.xsd#slqt_DebtInstrumentFinancingTransactionCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_slqt_DebtInstrumentFinancingTransactionCosts_01a0b4c9-5a79-7399-a776-8f1a67c595be" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeveranceCosts1_01a0b4c9-5a79-78a8-a9f0-c5bea7276fe9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SeveranceCosts1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_01a0b4c9-5a79-7b4d-9762-7fb77a51a145" xlink:to="loc_us-gaap_SeveranceCosts1_01a0b4c9-5a79-78a8-a9f0-c5bea7276fe9" xlink:type="arc" order="20"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://fasb.org/srt/role/srt-eedm/ExtensibleEnumerationLists" xlink:type="simple" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-roles-2026.xsd#eedm1"/>
  <link:definitionLink xlink:role="http://fasb.org/srt/role/srt-eedm/ExtensibleEnumerationLists" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract" xlink:to="loc_us-gaap_OtherAssetsNoncurrent" xlink:type="arc" order="101"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeStatementAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementAbstract" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants" xlink:type="arc" order="691"/>
  </link:definitionLink>
</link:linkbase>
