<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2013-10-25</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000354964</issuerCik>
        <issuerName>HSBC Finance Corp</issuerName>
        <issuerTradingSymbol>HSBC PRB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001393085</rptOwnerCik>
            <rptOwnerName>Martinelli Mark</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>HSBC FINANCE CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>26525 N. RIVERWOODS BLVD., SUITE 100</rptOwnerStreet2>
            <rptOwnerCity>METTAWA</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60045</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SEVP, Chief Auditor</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Patrick D. Schwartz, EVP and Corporate Secretary, HSBC Finance Corporation and Attorney-In-Fact for Mark Martinelli</signatureName>
        <signatureDate>2013-10-31</signatureDate>
    </ownerSignature>
</ownershipDocument>
