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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2025 Workiva-->
<!--r:9e9f21ac-3eba-4b9c-8b69-b79957385ca4,g:9b5065fd-f6a1-4a83-b961-bad0f7d1eff9-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:cinf="http://www.cinfin.com/20250331" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2024-01-31" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.cinfin.com/20250331">
  <xs:import namespace="http://fasb.org/srt/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd"/>
  <xs:import namespace="http://fasb.org/us-gaap/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd"/>
  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/ecd/2025" schemaLocation="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cinf-20250331_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cinf-20250331_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cinf-20250331_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cinf-20250331_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="Cover" roleURI="http://www.cinfin.com/role/Cover">
        <link:definition>9952151 - Document - Cover</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedBalanceSheets" roleURI="http://www.cinfin.com/role/CondensedConsolidatedBalanceSheets">
        <link:definition>9952152 - Statement - Condensed Consolidated Balance Sheets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedBalanceSheetsParenthetical" roleURI="http://www.cinfin.com/role/CondensedConsolidatedBalanceSheetsParenthetical">
        <link:definition>9952153 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsofIncome" roleURI="http://www.cinfin.com/role/CondensedConsolidatedStatementsofIncome">
        <link:definition>9952154 - Statement - Condensed Consolidated Statements of Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsofComprehensiveIncome" roleURI="http://www.cinfin.com/role/CondensedConsolidatedStatementsofComprehensiveIncome">
        <link:definition>9952155 - Statement - Condensed Consolidated Statements of Comprehensive Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsofComprehensiveIncomeParenthetical" roleURI="http://www.cinfin.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeParenthetical">
        <link:definition>9952156 - Statement - Condensed Consolidated Statements of Comprehensive Income (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsofShareholdersEquity" roleURI="http://www.cinfin.com/role/CondensedConsolidatedStatementsofShareholdersEquity">
        <link:definition>9952157 - Statement - Condensed Consolidated Statements of Shareholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsofCashFlows" roleURI="http://www.cinfin.com/role/CondensedConsolidatedStatementsofCashFlows">
        <link:definition>9952158 - Statement - Condensed Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountingPolicies" roleURI="http://www.cinfin.com/role/AccountingPolicies">
        <link:definition>9952159 - Disclosure - Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Investments" roleURI="http://www.cinfin.com/role/Investments">
        <link:definition>9952160 - Disclosure - Investments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurements" roleURI="http://www.cinfin.com/role/FairValueMeasurements">
        <link:definition>9952161 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyCasualtyLossandLossExpenses" roleURI="http://www.cinfin.com/role/PropertyCasualtyLossandLossExpenses">
        <link:definition>9952162 - Disclosure - Property Casualty Loss and Loss Expenses</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LifePolicyandInvestmentContractReserves" roleURI="http://www.cinfin.com/role/LifePolicyandInvestmentContractReserves">
        <link:definition>9952163 - Disclosure - Life Policy and Investment Contract Reserves</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DeferredPolicyAcquisitionCosts" roleURI="http://www.cinfin.com/role/DeferredPolicyAcquisitionCosts">
        <link:definition>9952164 - Disclosure - Deferred Policy Acquisition Costs</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveIncome" roleURI="http://www.cinfin.com/role/AccumulatedOtherComprehensiveIncome">
        <link:definition>9952165 - Disclosure - Accumulated Other Comprehensive Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Reinsurance" roleURI="http://www.cinfin.com/role/Reinsurance">
        <link:definition>9952166 - Disclosure - Reinsurance</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxes" roleURI="http://www.cinfin.com/role/IncomeTaxes">
        <link:definition>9952167 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetIncomeLossPerCommonShare" roleURI="http://www.cinfin.com/role/NetIncomeLossPerCommonShare">
        <link:definition>9952168 - Disclosure - Net Income (Loss) Per Common Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeRetirementBenefits" roleURI="http://www.cinfin.com/role/EmployeeRetirementBenefits">
        <link:definition>9952169 - Disclosure - Employee Retirement Benefits</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingentLiabilities" roleURI="http://www.cinfin.com/role/CommitmentsandContingentLiabilities">
        <link:definition>9952170 - Disclosure - Commitments and Contingent Liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformation" roleURI="http://www.cinfin.com/role/SegmentInformation">
        <link:definition>9952171 - Disclosure - Segment Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountingPoliciesPolicies" roleURI="http://www.cinfin.com/role/AccountingPoliciesPolicies">
        <link:definition>9955511 - Disclosure - Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsTables" roleURI="http://www.cinfin.com/role/InvestmentsTables">
        <link:definition>9955512 - Disclosure - Investments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsTables" roleURI="http://www.cinfin.com/role/FairValueMeasurementsTables">
        <link:definition>9955513 - Disclosure - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyCasualtyLossandLossExpensesTables" roleURI="http://www.cinfin.com/role/PropertyCasualtyLossandLossExpensesTables">
        <link:definition>9955514 - Disclosure - Property Casualty Loss and Loss Expenses (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LifePolicyandInvestmentContractReservesTables" roleURI="http://www.cinfin.com/role/LifePolicyandInvestmentContractReservesTables">
        <link:definition>9955515 - Disclosure - Life Policy and Investment Contract Reserves (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DeferredPolicyAcquisitionCostsTables" roleURI="http://www.cinfin.com/role/DeferredPolicyAcquisitionCostsTables">
        <link:definition>9955516 - Disclosure - Deferred Policy Acquisition Costs (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveIncomeTables" roleURI="http://www.cinfin.com/role/AccumulatedOtherComprehensiveIncomeTables">
        <link:definition>9955517 - Disclosure - Accumulated Other Comprehensive Income (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReinsuranceTables" roleURI="http://www.cinfin.com/role/ReinsuranceTables">
        <link:definition>9955518 - Disclosure - Reinsurance (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesTables" roleURI="http://www.cinfin.com/role/IncomeTaxesTables">
        <link:definition>9955519 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetIncomeLossPerCommonShareTables" roleURI="http://www.cinfin.com/role/NetIncomeLossPerCommonShareTables">
        <link:definition>9955520 - Disclosure - Net Income (Loss) Per Common Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeRetirementBenefitsTables" roleURI="http://www.cinfin.com/role/EmployeeRetirementBenefitsTables">
        <link:definition>9955521 - Disclosure - Employee Retirement Benefits (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationTables" roleURI="http://www.cinfin.com/role/SegmentInformationTables">
        <link:definition>9955522 - Disclosure - Segment Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsAnalysisofCostorAmortizedCostGrossUnrealizedGainsandLossesandFairValueforInvestmentsDetails" roleURI="http://www.cinfin.com/role/InvestmentsAnalysisofCostorAmortizedCostGrossUnrealizedGainsandLossesandFairValueforInvestmentsDetails">
        <link:definition>9955523 - Disclosure - Investments - Analysis of Cost or Amortized Cost, Gross Unrealized Gains and Losses and Fair Value for Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsFairValuesandUnrealizedLossesbyInvestmentCategoryandbyDurationofSecuritiesContinuousUnrealizedLossPositionDetails" roleURI="http://www.cinfin.com/role/InvestmentsFairValuesandUnrealizedLossesbyInvestmentCategoryandbyDurationofSecuritiesContinuousUnrealizedLossPositionDetails">
        <link:definition>9955524 - Disclosure - Investments - Fair Values and Unrealized Losses by Investment Category and by Duration of Securities' Continuous Unrealized Loss Position (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsScheduleofContractualMaturitiesofInvestmentsDetails" roleURI="http://www.cinfin.com/role/InvestmentsScheduleofContractualMaturitiesofInvestmentsDetails">
        <link:definition>9955525 - Disclosure - Investments - Schedule of Contractual Maturities of Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsRealizedInvestmentGainsandLossesandChangeinUnrealizedInvestmentGainsandLossesandOtherItemsDetails" roleURI="http://www.cinfin.com/role/InvestmentsRealizedInvestmentGainsandLossesandChangeinUnrealizedInvestmentGainsandLossesandOtherItemsDetails">
        <link:definition>9955526 - Disclosure - Investments - Realized Investment Gains and Losses and Change in Unrealized Investment Gains and Losses and Other Items (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsNarrativeDetails" roleURI="http://www.cinfin.com/role/InvestmentsNarrativeDetails">
        <link:definition>9955527 - Disclosure - Investments - (Narrative) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsFairValueHierarchyforAssetsMeasuredatFairValueonRecurringBasisDetails" roleURI="http://www.cinfin.com/role/FairValueMeasurementsFairValueHierarchyforAssetsMeasuredatFairValueonRecurringBasisDetails">
        <link:definition>9955528 - Disclosure - Fair Value Measurements - Fair Value Hierarchy for Assets Measured at Fair Value on Recurring Basis (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsNarrativeDetails" roleURI="http://www.cinfin.com/role/FairValueMeasurementsNarrativeDetails">
        <link:definition>9955529 - Disclosure - Fair Value Measurements - (Narrative) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsSummaryofBookValueandPrincipalAmountsofLongTermDebtDetails" roleURI="http://www.cinfin.com/role/FairValueMeasurementsSummaryofBookValueandPrincipalAmountsofLongTermDebtDetails">
        <link:definition>9955530 - Disclosure - Fair Value Measurements - Summary of Book Value and Principal Amounts of Long-Term Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsFairValuesofNotePayableandLongTermDebtDetails" roleURI="http://www.cinfin.com/role/FairValueMeasurementsFairValuesofNotePayableandLongTermDebtDetails">
        <link:definition>9955531 - Disclosure - Fair Value Measurements - Fair Values of Note Payable and Long-Term Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsFairValueofLifePolicyLoansDeferredAnnuitiesandStructuredSettlementsDetails" roleURI="http://www.cinfin.com/role/FairValueMeasurementsFairValueofLifePolicyLoansDeferredAnnuitiesandStructuredSettlementsDetails">
        <link:definition>9955532 - Disclosure - Fair Value Measurements - Fair Value of Life Policy Loans, Deferred Annuities, and Structured Settlements (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyCasualtyLossandLossExpensesConsolidatedPropertyCasualtyLossandLossExpenseReservesDetails" roleURI="http://www.cinfin.com/role/PropertyCasualtyLossandLossExpensesConsolidatedPropertyCasualtyLossandLossExpenseReservesDetails">
        <link:definition>9955533 - Disclosure - Property Casualty Loss and Loss Expenses - Consolidated Property Casualty Loss and Loss Expense Reserves (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyCasualtyLossandLossExpensesNarrativeDetails" roleURI="http://www.cinfin.com/role/PropertyCasualtyLossandLossExpensesNarrativeDetails">
        <link:definition>9955534 - Disclosure - Property Casualty Loss and Loss Expenses - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReservesinAdditiontoAccountBalanceBasedonExpectedNoLapseGuaranteeBenefitsandExpectedPolicyAssessmentsDetails" roleURI="http://www.cinfin.com/role/ReservesinAdditiontoAccountBalanceBasedonExpectedNoLapseGuaranteeBenefitsandExpectedPolicyAssessmentsDetails">
        <link:definition>9955535 - Disclosure - Reserves in Addition to Account Balance, Based on Expected No-Lapse Guarantee Benefits and Expected Policy Assessments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LiabilityforFuturePolicyBenefitDetails" roleURI="http://www.cinfin.com/role/LiabilityforFuturePolicyBenefitDetails">
        <link:definition>9955536 - Disclosure - Liability for Future Policy Benefit (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LifePolicyandInvestmentContractReservesNarrativeDetails" roleURI="http://www.cinfin.com/role/LifePolicyandInvestmentContractReservesNarrativeDetails">
        <link:definition>9955537 - Disclosure - Life Policy and Investment Contract Reserves (Narrative) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="UndiscountedandDiscountedFutureBenefitPaymentsandGrossPremiumsDetails" roleURI="http://www.cinfin.com/role/UndiscountedandDiscountedFutureBenefitPaymentsandGrossPremiumsDetails">
        <link:definition>9955538 - Disclosure - Undiscounted and Discounted Future Benefit Payments and Gross Premiums (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueandInterestRecognizedinIncomeDetails" roleURI="http://www.cinfin.com/role/RevenueandInterestRecognizedinIncomeDetails">
        <link:definition>9955539 - Disclosure - Revenue and Interest Recognized in Income (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="WeightedAverageInterestRateforLifePolicyProductsDetails" roleURI="http://www.cinfin.com/role/WeightedAverageInterestRateforLifePolicyProductsDetails">
        <link:definition>9955540 - Disclosure - Weighted Average Interest Rate for Life Policy Products (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ChangesinPolicyholdersAccountBalancesDetails" roleURI="http://www.cinfin.com/role/ChangesinPolicyholdersAccountBalancesDetails">
        <link:definition>9955541 - Disclosure - Changes in Policyholders' Account Balances (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountValuesbyRangeofGuaranteedMinimumCreditingRatesDetails" roleURI="http://www.cinfin.com/role/AccountValuesbyRangeofGuaranteedMinimumCreditingRatesDetails">
        <link:definition>9955542 - Disclosure - Account Values by Range of Guaranteed Minimum Crediting Rates (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherAdditionalLiabilityRollforwardDetails" roleURI="http://www.cinfin.com/role/OtherAdditionalLiabilityRollforwardDetails">
        <link:definition>9955543 - Disclosure - Other Additional Liability Rollforward (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SeparateAccountBalancesandChangesDetails" roleURI="http://www.cinfin.com/role/SeparateAccountBalancesandChangesDetails">
        <link:definition>9955544 - Disclosure - Separate Account Balances and Changes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DeferredPolicyAcquisitionCostsDeferredPolicyAcquisitionCostsandAssetReconciliationDetail" roleURI="http://www.cinfin.com/role/DeferredPolicyAcquisitionCostsDeferredPolicyAcquisitionCostsandAssetReconciliationDetail">
        <link:definition>9955545 - Disclosure - Deferred Policy Acquisition Costs - Deferred Policy Acquisition Costs and Asset Reconciliation (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DeferredPolicyAcquisitionCostsLifeDeferredAcquisitionCostsRollforwardbyProductDetails" roleURI="http://www.cinfin.com/role/DeferredPolicyAcquisitionCostsLifeDeferredAcquisitionCostsRollforwardbyProductDetails">
        <link:definition>9955546 - Disclosure - Deferred Policy Acquisition Costs - Life Deferred Acquisition Costs Rollforward by Product (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveIncomeAOCIDetails" roleURI="http://www.cinfin.com/role/AccumulatedOtherComprehensiveIncomeAOCIDetails">
        <link:definition>9955547 - Disclosure - Accumulated Other Comprehensive Income (AOCI) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReinsuranceConsolidatedPropertyCasualtyInsuranceAssumedandCededBusinessDetails" roleURI="http://www.cinfin.com/role/ReinsuranceConsolidatedPropertyCasualtyInsuranceAssumedandCededBusinessDetails">
        <link:definition>9955548 - Disclosure - Reinsurance - Consolidated Property Casualty Insurance Assumed and Ceded Business (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReinsuranceLifeInsuranceCededBusinessDetails" roleURI="http://www.cinfin.com/role/ReinsuranceLifeInsuranceCededBusinessDetails">
        <link:definition>9955549 - Disclosure - Reinsurance - Life Insurance Ceded Business (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReinsuranceNarrativeDetails" roleURI="http://www.cinfin.com/role/ReinsuranceNarrativeDetails">
        <link:definition>9955550 - Disclosure - Reinsurance (Narrative) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesNarrativeDetails" roleURI="http://www.cinfin.com/role/IncomeTaxesNarrativeDetails">
        <link:definition>9955551 - Disclosure - Income Taxes (Narrative) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesDifferencesBetweenStatutoryIncomeTaxRateandEffectiveIncomeTaxRateDetails" roleURI="http://www.cinfin.com/role/IncomeTaxesDifferencesBetweenStatutoryIncomeTaxRateandEffectiveIncomeTaxRateDetails">
        <link:definition>9955552 - Disclosure - Income Taxes - Differences Between Statutory Income Tax Rate and Effective Income Tax Rate (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetIncomeLossPerCommonShareCalculationsforBasicandDilutedEarningsPerShareDetails" roleURI="http://www.cinfin.com/role/NetIncomeLossPerCommonShareCalculationsforBasicandDilutedEarningsPerShareDetails">
        <link:definition>9955553 - Disclosure - Net Income (Loss) Per Common Share - Calculations for Basic and Diluted Earnings Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeRetirementBenefitsComponentsofNetPeriodicCostsforQualifiedandSupplementalPensionPlansDetails" roleURI="http://www.cinfin.com/role/EmployeeRetirementBenefitsComponentsofNetPeriodicCostsforQualifiedandSupplementalPensionPlansDetails">
        <link:definition>9955554 - Disclosure - Employee Retirement Benefits - Components of Net Periodic Costs for Qualified and Supplemental Pension Plans (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeRetirementBenefitsDefinedContributionPlanNarrativeDetails" roleURI="http://www.cinfin.com/role/EmployeeRetirementBenefitsDefinedContributionPlanNarrativeDetails">
        <link:definition>9955555 - Disclosure - Employee Retirement Benefits - Defined Contribution Plan (Narrative) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationNarrativeDetails" roleURI="http://www.cinfin.com/role/SegmentInformationNarrativeDetails">
        <link:definition>9955556 - Disclosure - Segment Information - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationSegmentIncomeLossBeforeIncomeTaxesDetails" roleURI="http://www.cinfin.com/role/SegmentInformationSegmentIncomeLossBeforeIncomeTaxesDetails">
        <link:definition>9955557 - Disclosure - Segment Information ( Segment Income (Loss) Before Income Taxes) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationReconciliationtoConsolidatedIncomeLossBeforeIncomeTaxesDetails" roleURI="http://www.cinfin.com/role/SegmentInformationReconciliationtoConsolidatedIncomeLossBeforeIncomeTaxesDetails">
        <link:definition>9955558 - Disclosure - Segment Information (Reconciliation to Consolidated Income (Loss) Before Income Taxes) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationReconciliationofAssetsfromsegmentstoConsolidatedDetails" roleURI="http://www.cinfin.com/role/SegmentInformationReconciliationofAssetsfromsegmentstoConsolidatedDetails">
        <link:definition>9955559 - Disclosure - Segment Information (Reconciliation of Assets from segments to Consolidated) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:element id="cinf_ReinsuranceRecoverable" abstract="false" name="ReinsuranceRecoverable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ShortTermInvestmentsAvailableForSaleAmortizedCostBasis" abstract="false" name="ShortTermInvestmentsAvailableForSaleAmortizedCostBasis" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_UnderwritingAcquisitionAndInsuranceExpenses" abstract="false" name="UnderwritingAcquisitionAndInsuranceExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ChangeInLifePolicyReservesReinsuranceRecoverableAndOtherNetOfTax" abstract="false" name="ChangeInLifePolicyReservesReinsuranceRecoverableAndOtherNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetActuarialLossAndPriorServiceCostArisingDuringPeriodTax" abstract="false" name="OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetActuarialLossAndPriorServiceCostArisingDuringPeriodTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ChangeInLifePolicyReservesReinsuranceRecoverableAndOtherTax" abstract="false" name="ChangeInLifePolicyReservesReinsuranceRecoverableAndOtherTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_SharesAcquiredDuringPeriodValueEmployeeShareBasedCompensationPlans" abstract="false" name="SharesAcquiredDuringPeriodValueEmployeeShareBasedCompensationPlans" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_SharesAcquiredDuringPeriodEmployeeShareBasedCompensationPlansShares" abstract="false" name="SharesAcquiredDuringPeriodEmployeeShareBasedCompensationPlansShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cinf_DepreciationAmortizationAndOther" abstract="false" name="DepreciationAmortizationAndOther" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_IncreaseDecreaseinPremiumsandReinsurancereceivable" abstract="false" name="IncreaseDecreaseinPremiumsandReinsurancereceivable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ChangeInShortTermInvestments" abstract="false" name="ChangeInShortTermInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_PaymentsToAcquireProceedsFromSaleAndCollectionOfFinanceReceivables" abstract="false" name="PaymentsToAcquireProceedsFromSaleAndCollectionOfFinanceReceivables" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_PurchaseOfTreasurySharesNonCash" abstract="false" name="PurchaseOfTreasurySharesNonCash" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_AccumulatedOtherComprehensiveIncomeAbstract" abstract="true" name="AccumulatedOtherComprehensiveIncomeAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cinf_ScheduleOfInvestmentIncomeRealizedGainLossComprehensiveIncomeLossTableTableTextBlock" abstract="false" name="ScheduleOfInvestmentIncomeRealizedGainLossComprehensiveIncomeLossTableTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="cinf_LifeDeferredPolicyAcquisitionCostsByProductTableTextBlock" abstract="false" name="LifeDeferredPolicyAcquisitionCostsByProductTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="cinf_PropertyCasualtyInsuranceAssumedAndCededBusinessTableTextBlock" abstract="false" name="PropertyCasualtyInsuranceAssumedAndCededBusinessTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="cinf_LifeInsuranceAssumedAndCededBusinessTableTableTextBlock" abstract="false" name="LifeInsuranceAssumedAndCededBusinessTableTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="cinf_InvestmentsAvailableForSaleAmortizedCostBasis" abstract="false" name="InvestmentsAvailableForSaleAmortizedCostBasis" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_InvestmentsAvailableForSaleAccumulatedGrossUnrealizedGainBeforeTax" abstract="false" name="InvestmentsAvailableForSaleAccumulatedGrossUnrealizedGainBeforeTax" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_InvestmentsAvailableForSaleAccumulatedGrossUnrealizedLossBeforeTax" abstract="false" name="InvestmentsAvailableForSaleAccumulatedGrossUnrealizedLossBeforeTax" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_InvestmentsAvailableForSale" abstract="false" name="InvestmentsAvailableForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ShortTermInvestmentsAvailableForSaleAccumulatedGrossUnrealizedGainBeforeTax" abstract="false" name="ShortTermInvestmentsAvailableForSaleAccumulatedGrossUnrealizedGainBeforeTax" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ShortTermInvestmentsAvailableForSaleAccumulatedGrossUnrealizedLossBeforeTax" abstract="false" name="ShortTermInvestmentsAvailableForSaleAccumulatedGrossUnrealizedLossBeforeTax" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_InvestmentsAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months" abstract="false" name="InvestmentsAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_InvestmentsAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" abstract="false" name="InvestmentsAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_InvestmentsAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger" abstract="false" name="InvestmentsAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_InvestmentsAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss" abstract="false" name="InvestmentsAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_InvestmentsAvailableForSaleUnrealizedLossPosition" abstract="false" name="InvestmentsAvailableForSaleUnrealizedLossPosition" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_InvestmentsAvailableForSaleUnrealizedLossPositionAccumulatedLoss" abstract="false" name="InvestmentsAvailableForSaleUnrealizedLossPositionAccumulatedLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ShortTermInvestmentsAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months" abstract="false" name="ShortTermInvestmentsAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ShortTermInvestmentsAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" abstract="false" name="ShortTermInvestmentsAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ShortTermInvestmentsAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger" abstract="false" name="ShortTermInvestmentsAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ShortTermInvestmentsAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss" abstract="false" name="ShortTermInvestmentsAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ShortTermInvestmentsAvailableForSaleUnrealizedLossPositionTotal" abstract="false" name="ShortTermInvestmentsAvailableForSaleUnrealizedLossPositionTotal" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ShortTermInvestmentsAvailableForSaleUnrealizedLossPositionAccumulatedLoss" abstract="false" name="ShortTermInvestmentsAvailableForSaleUnrealizedLossPositionAccumulatedLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_AvailableforsaleSecuritiesDebtMaturitiesAveragePercentAbstract" abstract="true" name="AvailableforsaleSecuritiesDebtMaturitiesAveragePercentAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cinf_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAverage" abstract="false" name="AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAverage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cinf_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAverage" abstract="false" name="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAverage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cinf_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAverage" abstract="false" name="AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAverage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cinf_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAverage" abstract="false" name="AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAverage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cinf_AvailableForSaleSecuritiesDebtMaturitiesAverage" abstract="false" name="AvailableForSaleSecuritiesDebtMaturitiesAverage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cinf_InvestmentIncomeOtherLongTermInvestments" abstract="false" name="InvestmentIncomeOtherLongTermInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ChangesInAllowanceForCreditLossesDuringPeriod" abstract="false" name="ChangesInAllowanceForCreditLossesDuringPeriod" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_OtherRealizedInvestmentGainsLossesNet" abstract="false" name="OtherRealizedInvestmentGainsLossesNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_LargestSingleCommonStockHolding" abstract="false" name="LargestSingleCommonStockHolding" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_Largestequityholdingstototalequityportfolio" abstract="false" name="Largestequityholdingstototalequityportfolio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cinf_Largestequityholdingstototalportfolio" abstract="false" name="Largestequityholdingstototalportfolio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cinf_NumberOfSecuritiesContinuousUnrealizedLossPosition" abstract="false" name="NumberOfSecuritiesContinuousUnrealizedLossPosition" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cinf_AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLoss3" abstract="false" name="AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLoss3" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_NumberOfSecuritiesContinuousUnrealizedLossPositionandBelow70PercentofAmortizedCost" abstract="false" name="NumberOfSecuritiesContinuousUnrealizedLossPositionandBelow70PercentofAmortizedCost" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cinf_FixedMaturityInvestmentsPercentageOfAmortizedCosts" abstract="false" name="FixedMaturityInvestmentsPercentageOfAmortizedCosts" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cinf_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTable" abstract="true" name="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="cinf_TaxableFixedMaturitiesMember" abstract="true" name="TaxableFixedMaturitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_InvestmentcontractreservesMember" abstract="true" name="InvestmentcontractreservesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_OutstandingPrincipleAndInterestForLifePolicyLoans" abstract="false" name="OutstandingPrincipleAndInterestForLifePolicyLoans" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_SeniorDebenturesSixPointNinePercentDueTwentyTwentyEightMember" abstract="true" name="SeniorDebenturesSixPointNinePercentDueTwentyTwentyEightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_SeniorDebenturesSixPointNineTwoPercentDueTwentyTwentyEightMember" abstract="true" name="SeniorDebenturesSixPointNineTwoPercentDueTwentyTwentyEightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_SeniorNotesSixPointOneTwoFivePercentDueTwentyThirtyFourMember" abstract="true" name="SeniorNotesSixPointOneTwoFivePercentDueTwentyThirtyFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_DebtInstrumentIssuanceYear" abstract="false" name="DebtInstrumentIssuanceYear" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cinf_SeniorDebentures69PercentDue2028Member" abstract="true" name="SeniorDebentures69PercentDue2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_SeniorDebentures692PercentDue2028Member" abstract="true" name="SeniorDebentures692PercentDue2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_SeniorNotes6125PercentDue2034Member" abstract="true" name="SeniorNotes6125PercentDue2034Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_DeferredAnnuitiesMember" abstract="true" name="DeferredAnnuitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_LifeInsuranceMember" abstract="true" name="LifeInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_CommercialLinesInsuranceMember" abstract="true" name="CommercialLinesInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_PersonalLinesInsuranceMember" abstract="true" name="PersonalLinesInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_ExcessandSurplusLinesInsuranceMember" abstract="true" name="ExcessandSurplusLinesInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_CommercialPropertySegmentMember" abstract="true" name="CommercialPropertySegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_PersonalAutoMember" abstract="true" name="PersonalAutoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_HomeownerMember" abstract="true" name="HomeownerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_WorkersCompensationMember" abstract="true" name="WorkersCompensationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_LifePolicyReservesMember" abstract="true" name="LifePolicyReservesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_NetLiabilityForFuturePolicyBenefitsRollForward" abstract="true" name="NetLiabilityForFuturePolicyBenefitsRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cinf_LiabilityForFuturePolicyBenefitBeforeImpactOfFlooringAtCohortLevelBeforeReinsurance" abstract="false" name="LiabilityForFuturePolicyBenefitBeforeImpactOfFlooringAtCohortLevelBeforeReinsurance" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_LiabilityForFuturePolicyBenefitImpactOfFlooringAtCohortLevel" abstract="false" name="LiabilityForFuturePolicyBenefitImpactOfFlooringAtCohortLevel" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_EffectOfDiscountRateAssumptionChangesOnReinsuranceRecoverable" abstract="false" name="EffectOfDiscountRateAssumptionChangesOnReinsuranceRecoverable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_DiscountRateAssumptionChangesIncludedInImpactOfFlooringAtCohortLevel" abstract="false" name="DiscountRateAssumptionChangesIncludedInImpactOfFlooringAtCohortLevel" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_AdditionalLiabilityLongDurationInsuranceBeforeReinsuranceAfterDiscountRateChangeAfterShadowReserveAdjustment" abstract="false" name="AdditionalLiabilityLongDurationInsuranceBeforeReinsuranceAfterDiscountRateChangeAfterShadowReserveAdjustment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_AdditionalLiabilityLongDurationInsuranceShadowReserveAdjustments" abstract="false" name="AdditionalLiabilityLongDurationInsuranceShadowReserveAdjustments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_SeparatedAccountLiabilityIncreaseDecreaseFromInterestCreditedBeforePolicyCharges" abstract="false" name="SeparatedAccountLiabilityIncreaseDecreaseFromInterestCreditedBeforePolicyCharges" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ScheduleofDeferredPolicyAcquisitionCostsTable" abstract="true" name="ScheduleofDeferredPolicyAcquisitionCostsTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="cinf_ConsolidatedPropertyAndCasualtyInsuranceMember" abstract="true" name="ConsolidatedPropertyAndCasualtyInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_ScheduleofDeferredPolicyAcquisitionCostsLineItems" abstract="true" name="ScheduleofDeferredPolicyAcquisitionCostsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cinf_AccumulatedNetUnrealizedGainLossOnLifePolicyReservesReinsuranceRecoverableAndOtherMember" abstract="true" name="AccumulatedNetUnrealizedGainLossOnLifePolicyReservesReinsuranceRecoverableAndOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeLineItems" abstract="true" name="ReclassificationOutOfAccumulatedOtherComprehensiveIncomeLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cinf_ChangeInAccumulatedOtherComprehensiveIncomeRollForward" abstract="true" name="ChangeInAccumulatedOtherComprehensiveIncomeRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cinf_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAndOtherAssetsAdjustmentBeforeTax" abstract="false" name="OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAndOtherAssetsAdjustmentBeforeTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_OtherComprehensiveIncomeLossLifePolicyReservesReinsuranceRecoverableAndOtherBeforeTax" abstract="false" name="OtherComprehensiveIncomeLossLifePolicyReservesReinsuranceRecoverableAndOtherBeforeTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_IncreaseDecreaseInOtherComprehensiveIncomeLossBeforeTax" abstract="false" name="IncreaseDecreaseInOtherComprehensiveIncomeLossBeforeTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_AccumulatedOtherComprehensiveIncomeLossTaxAbstract" abstract="true" name="AccumulatedOtherComprehensiveIncomeLossTaxAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cinf_AccumulatedOtherComprehensiveIncomeLossTax" abstract="false" name="AccumulatedOtherComprehensiveIncomeLossTax" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ReclassificationfromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax" abstract="false" name="ReclassificationfromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAndOtherAssetsAdjustmentTax" abstract="false" name="OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAndOtherAssetsAdjustmentTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_OtherComprehensiveIncomeLossLifePolicyReservesReinsuranceRecoverableAndOtherTax" abstract="false" name="OtherComprehensiveIncomeLossLifePolicyReservesReinsuranceRecoverableAndOtherTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_IncreaseDecreaseInOtherComprehensiveIncomeLossTax" abstract="false" name="IncreaseDecreaseInOtherComprehensiveIncomeLossTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAndOtherAssetsAdjustmentNetOfTax" abstract="false" name="OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAndOtherAssetsAdjustmentNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_OtherComprehensiveIncomeLossLifePolicyReservesReinsuranceRecoverableAndOtherNetOfTax" abstract="false" name="OtherComprehensiveIncomeLossLifePolicyReservesReinsuranceRecoverableAndOtherNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_IncreaseDecreaseInOtherComprehensiveIncomeLossNetOfTax" abstract="false" name="IncreaseDecreaseInOtherComprehensiveIncomeLossNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_PropertyCasualtyInsurancePremiumsWrittenOnAssumedAndCededBusinessTable" abstract="true" name="PropertyCasualtyInsurancePremiumsWrittenOnAssumedAndCededBusinessTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="cinf_PropertyCasualtyInsurancePremiumsWrittenOnAssumedAndCededBusinessLineItems" abstract="true" name="PropertyCasualtyInsurancePremiumsWrittenOnAssumedAndCededBusinessLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cinf_MSPUnderwritingLimitedMember" abstract="true" name="MSPUnderwritingLimitedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_ScheduleOfEarningsPerShareBasicAndDilutedByCommonClassTable" abstract="true" name="ScheduleOfEarningsPerShareBasicAndDilutedByCommonClassTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="cinf_ScheduleOfEarningsPerShareBasicAndDilutedByCommonClassLineItems" abstract="true" name="ScheduleOfEarningsPerShareBasicAndDilutedByCommonClassLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cinf_DefinedBenefitPlanNonServiceCostBenefit" abstract="false" name="DefinedBenefitPlanNonServiceCostBenefit" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_NumberOfIndustriesOperatingIn" abstract="false" name="NumberOfIndustriesOperatingIn" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cinf_InvestmentSegmentOfCINFMember" abstract="true" name="InvestmentSegmentOfCINFMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
