<SEC-DOCUMENT>0001209191-13-045885.txt : 20130927
<SEC-HEADER>0001209191-13-045885.hdr.sgml : 20130927
<ACCEPTANCE-DATETIME>20130927123605
ACCESSION NUMBER:		0001209191-13-045885
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20130926
FILED AS OF DATE:		20130927
DATE AS OF CHANGE:		20130927

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SMITHFIELD FOODS INC
		CENTRAL INDEX KEY:			0000091388
		STANDARD INDUSTRIAL CLASSIFICATION:	MEAT PACKING PLANTS [2011]
		IRS NUMBER:				520845861
		STATE OF INCORPORATION:			VA
		FISCAL YEAR END:			0428

	BUSINESS ADDRESS:	
		STREET 1:		200 COMMERCE STREET
		STREET 2:		EXECUTIVE OFFICE BUILDING
		CITY:			SMITHFIELD
		STATE:			VA
		ZIP:			23430
		BUSINESS PHONE:		7573653000

	MAIL ADDRESS:	
		STREET 1:		200 COMMERCE STREET
		STREET 2:		EXECUTIVE OFFICE BUILDING
		CITY:			SMITHFIELD
		STATE:			VA
		ZIP:			23430

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LIBERTY EQUITIES CORP
		DATE OF NAME CHANGE:	19710221

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LIBERTY REAL ESTATE TRUST
		DATE OF NAME CHANGE:	19661113

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MURPHY WENDELL H
		CENTRAL INDEX KEY:			0000904450

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15321
		FILM NUMBER:		131118800

	MAIL ADDRESS:	
		STREET 1:		PO BOX 1087
		CITY:			ROSE HILL
		STATE:			NC
		ZIP:			28458
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2013-09-26</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0000091388</issuerCik>
        <issuerName>SMITHFIELD FOODS INC</issuerName>
        <issuerTradingSymbol>SFD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000904450</rptOwnerCik>
            <rptOwnerName>MURPHY WENDELL H</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O 200 COMMERCE STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SMITHFIELD</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>23430</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>common stock, par value $.50</value>
            </securityTitle>
            <transactionDate>
                <value>2013-09-26</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>4000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>34.00</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Spouse</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Phantom Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2013-09-26</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>50897.2979</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>34.00</value>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>common stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>50897.2979</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Pursuant to the merger agreement, dated as of May 28, 2013, among Smithfield Foods, Inc., Shuanghui International Holdings Limited and Sun Merger Sub, Inc., these shares were cancelled and converted into the right to receive an amount in cash equal to $34.00 per share.</footnote>
        <footnote id="F2">1 for 1</footnote>
        <footnote id="F3">Pursuant to the merger agreement, the phantom stock was cancelled and converted into the right to receive an amount in cash equal to the product of (i) the total number of underlying shares of common stock and (ii) $34.00.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ by Michael H. Cole, as attorney-in-fact</signatureName>
        <signatureDate>2013-09-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
