-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 P/6/biXuo0Vxi7JNtxiNU2vQE720+GQeDC/70ES9/Jjxu3xw4MUk5haoJ7Eu0hQT
 aFwUWHn425RxQsVhqyBSkA==

<SEC-DOCUMENT>0001181431-03-008314.txt : 20030520
<SEC-HEADER>0001181431-03-008314.hdr.sgml : 20030520
<ACCEPTANCE-DATETIME>20030520163106
ACCESSION NUMBER:		0001181431-03-008314
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030519
FILED AS OF DATE:		20030520

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KELLOGG W K FOUNDATION
		CENTRAL INDEX KEY:			0001197916
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			0831

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-04171
		FILM NUMBER:		03712801

	BUSINESS ADDRESS:	
		STREET 1:		ONE MICHIGAN AVE EAST
		CITY:			BATTLE CREEK
		STATE:			MI
		ZIP:			49017
		BUSINESS PHONE:		2699692256

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KELLOGG W K FOUNDATION TRUST
		CENTRAL INDEX KEY:			0001197921
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			0831

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-04171
		FILM NUMBER:		03712802

	BUSINESS ADDRESS:	
		STREET 1:		ONE MICHIGAN AVE EAST
		CITY:			BATTLE CREEK
		STATE:			MI
		ZIP:			49017
		BUSINESS PHONE:		2699692256

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			KELLOGG CO
		CENTRAL INDEX KEY:			0000055067
		STANDARD INDUSTRIAL CLASSIFICATION:	GRAIN MILL PRODUCTS [2040]
		IRS NUMBER:				380710690
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE KELLOGG SQ
		STREET 2:		P O BOX 3599
		CITY:			BATTLE CREEK
		STATE:			MI
		ZIP:			49016-3599
		BUSINESS PHONE:		6169612000

	MAIL ADDRESS:	
		STREET 1:		ONE KELLOGG SQUARE
		STREET 2:		P O BOX 3599
		CITY:			BATTLE CREEK
		STATE:			MI
		ZIP:			49016-3599
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd9398.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0101</schemaVersion>

    <documentType>4</documentType>
<periodOfReport>2003-05-19</periodOfReport>
<notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000055067</issuerCik>
        <issuerName>KELLOGG CO</issuerName>
        <issuerTradingSymbol>K</issuerTradingSymbol></issuer>
<reportingOwner>
<reportingOwnerId>
            <rptOwnerCik>0001197921</rptOwnerCik>
            <rptOwnerName>KELLOGG W K FOUNDATION TRUST</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector>
<isOfficer>0</isOfficer>
<isTenPercentOwner>1</isTenPercentOwner>
<isOther>0</isOther>
<officerTitle></officerTitle>
<otherText></otherText></reportingOwnerRelationship></reportingOwner>
<reportingOwner>
<reportingOwnerId>
            <rptOwnerCik>0001197916</rptOwnerCik>
            <rptOwnerName>KELLOGG W K FOUNDATION</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector>
<isOfficer>0</isOfficer>
<isTenPercentOwner>1</isTenPercentOwner>
<isOther>0</isOther>
<officerTitle></officerTitle>
<otherText></otherText></reportingOwnerRelationship></reportingOwner>
<nonDerivativeSecurity>
<securityTitle>
<value>Common Stock</value></securityTitle>
<transactionDate>
<value>2003-05-19</value></transactionDate>
<deemedExecutionDate>
<value>2003-05-19</value></deemedExecutionDate>
<transactionCoding>
<transactionFormType>4</transactionFormType>
<transactionCode>S</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved></transactionCoding>
<transactionTimeliness>
<value></value></transactionTimeliness>
<transactionAmounts>
<transactionShares>
<value>39600</value></transactionShares>
<transactionValue>
<value>33.5086</value></transactionValue>
<transactionAcquiredDisposedCode>
<value>D</value></transactionAcquiredDisposedCode></transactionAmounts>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>125664940</value>
<footnoteId id="F1"/>
<footnoteId id="F2"/></sharesOwnedFollowingTransaction></postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value>
<footnoteId id="F1"/></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></nonDerivativeSecurity>
<footnotes>
<footnote id="F1">125,664,940 shares are directly owned by the W.K. Kellogg Foundation Trust (the &quot;Trust&quot;) of which Jonathan T. Walton, William C. Richardson, Carlos M. Gutierrez, and The Bank of New York are Trustees and the W.K. Kellogg Foundation (the &quot;Foundation&quot;) is the sole beneficiary.</footnote>
<footnote id="F2">721,920 shares are indirectly owned by the Carrie Staines Kellogg Trust # 5977 of which the Foundation is currently a beneficiary.</footnote></footnotes>
<ownerSignature>
<signatureName>Catherine P. Boyle, Vice President, The Bank of New York as CorporateTrustee</signatureName>
<signatureDate>2003-05-20</signatureDate></ownerSignature></ownershipDocument>


</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----