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

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2023-01-17</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000815097</issuerCik>
        <issuerName>CARNIVAL CORP</issuerName>
        <issuerTradingSymbol>CCL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001326232</rptOwnerCik>
            <rptOwnerName>Bessemer Trust CO of Delaware, N.A.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>20 MONTCHANIN RD, SUITE 1500</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>WILMINGTON</rptOwnerCity>
            <rptOwnerState>DE</rptOwnerState>
            <rptOwnerZipCode>19807</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>true</isOther>
            <otherText>See Remarks</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <remarks>On January 17, 2023, Bessemer Trust Company of Delaware, N.A. was appointed trustee of the Artsfare 2005 Trust No. 2 which owns 35,465,423 shares of Carnival Corp. As a result, the reporting person may be deemed a member of a Section 13(d) group that owns more than 10% of the issuer's outstanding Common Stock. However, the reporting person disclaims such group membership, and this report shall not be deemed an admission that the reporting person is a member of a Section 13(d) group that owns more than 10% of the issuer's outstanding Common Stock for purposes of Section 16 or for any other purpose.</remarks>

    <ownerSignature>
        <signatureName>Bessemer Trust Company of Delaware, N.A.
/s/ George W. Kern
George W. Kern
Title: CEO and President</signatureName>
        <signatureDate>2023-01-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
