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

    <schemaVersion>X0607</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2026-05-21</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0002088626</issuerCik>
        <issuerName>Peace Acquisition Corp.</issuerName>
        <issuerTradingSymbol>PECE</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001861018</rptOwnerCik>
            <rptOwnerName>Jiang Cathy</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>C/O PEACE ACQUISITION CORP</rptOwnerStreet1>
            <rptOwnerStreet2>205 WEST 37TH STREET</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10018</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CFO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <remarks>Does not include any securities indirectly owned by this individual as a result of his limited partnership interest in Casper Holding LP, a sponsor of the Issuer.</remarks>

    <ownerSignature>
        <signatureName>/s/ Dan (Cathy) Jiang</signatureName>
        <signatureDate>2026-05-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
