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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 MWuMObD7Dq2D6R+Bw4ZDk70oAE2Afsr+oC9bxN4sq9MY6UC71/q+sBIgsDRpoq2m
 j3MImO8SqeFCtlu3e9EjEA==

<SEC-DOCUMENT>0001179110-03-005453.txt : 20030812
<SEC-HEADER>0001179110-03-005453.hdr.sgml : 20030812
<ACCEPTANCE-DATETIME>20030812183232
ACCESSION NUMBER:		0001179110-03-005453
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030812
FILED AS OF DATE:		20030812

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LECHLEITER JOHN C
		CENTRAL INDEX KEY:			0001209281

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06450
		FILM NUMBER:		03838729

	MAIL ADDRESS:	
		STREET 1:		C/O GREAT LAKES CHEMICAL
		STREET 2:		500 E 96TH STREET, SUITE 500
		CITY:			INDIANAPOLIS
		STATE:			IN
		ZIP:			46240

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GREAT LAKES CHEMICAL CORP
		CENTRAL INDEX KEY:			0000043362
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS CHEMICAL PRODUCTS [2890]
		IRS NUMBER:				951765035
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		9025 NORTH RIVER RD.
		STREET 2:		SUITE 400
		CITY:			INDIANAPOLIS
		STATE:			IN
		ZIP:			46221
		BUSINESS PHONE:		3177153000

	MAIL ADDRESS:	
		STREET 1:		9025 NORTH RIVER RD.
		STREET 2:		SUITE 400
		CITY:			INDIANAPOLIS
		STATE:			IN
		ZIP:			46240

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GREAT LAKES OIL & CHEMICAL CO
		DATE OF NAME CHANGE:	19700925

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MCCLANAHAN OIL CO
		DATE OF NAME CHANGE:	19700925
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
<XML>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
<periodOfReport>2003-08-12</periodOfReport>
<notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000043362</issuerCik>
        <issuerName>GREAT LAKES CHEMICAL CORP</issuerName>
        <issuerTradingSymbol>GLK</issuerTradingSymbol>
</issuer>
<reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001209281</rptOwnerCik>
            <rptOwnerName>LECHLEITER JOHN C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>9025 NORTH RIVER ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 400</rptOwnerStreet2>
            <rptOwnerCity>INDIANAPOLIS</rptOwnerCity>
            <rptOwnerState>IN</rptOwnerState>
            <rptOwnerZipCode>46240</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector>
<isOfficer>0</isOfficer>
<isTenPercentOwner>0</isTenPercentOwner>
<isOther>0</isOther>
<officerTitle></officerTitle>
<otherText></otherText>
</reportingOwnerRelationship>
</reportingOwner>
<nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common</value>
</securityTitle>
<transactionDate><value>2003-08-12</value>
</transactionDate>
<transactionCoding><transactionFormType>4</transactionFormType>
<transactionCode>P</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved>
</transactionCoding>
<transactionAmounts><transactionShares><value>1000.00</value>
</transactionShares>
<transactionPricePerShare><value>20.71</value>
</transactionPricePerShare>
<transactionAcquiredDisposedCode><value>A</value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<postTransactionAmounts><sharesOwnedFollowingTransaction><value>3650.00</value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature><directOrIndirectOwnership><value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</nonDerivativeTransaction>
</nonDerivativeTable>
<derivativeTable></derivativeTable>
<footnotes></footnotes>
<ownerSignature><signatureName>/s/ Karen Witte Duros, Attorney-in-Fact</signatureName>
<signatureDate>2003-08-12</signatureDate>
</ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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