-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0000313927-04-000604.txt : 20041004
<SEC-HEADER>0000313927-04-000604.hdr.sgml : 20041004
<ACCEPTANCE-DATETIME>20041004105835
ACCESSION NUMBER:		0000313927-04-000604
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040930
FILED AS OF DATE:		20041004
DATE AS OF CHANGE:		20041004

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DIXON ROSINA B
		CENTRAL INDEX KEY:			0001007932

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10585
		FILM NUMBER:		041060623

	BUSINESS ADDRESS:	
		STREET 1:		43
		STREET 2:		43 OLD WOOD ROAD
		CITY:			BERNARDSVILLE
		STATE:			NJ
		ZIP:			07924

	MAIL ADDRESS:	
		STREET 1:		43 OLD WOOD ROAD
		CITY:			BERNARDSVILLE
		STATE:			NJ
		ZIP:			07924

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CHURCH & DWIGHT CO INC /DE/
		CENTRAL INDEX KEY:			0000313927
		STANDARD INDUSTRIAL CLASSIFICATION:	SOAP, DETERGENT, CLEANING PREPARATIONS, PERFUMES, COSMETICS [2840]
		IRS NUMBER:				134996950
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		469 N HARRISON ST
		CITY:			PRINCETON
		STATE:			NJ
		ZIP:			08543-5297
		BUSINESS PHONE:		6096835900

	MAIL ADDRESS:	
		STREET 1:		469 N HARRISON STREET
		CITY:			PRINCETON
		STATE:			NJ
		ZIP:			08543-5297
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c0001007932d20041004f4f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
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<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-09-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000313927</issuerCik>
        <issuerName>CHURCH &amp; DWIGHT CO INC /DE/</issuerName>
        <issuerTradingSymbol>CHD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001007932</rptOwnerCik>
            <rptOwnerName>DIXON ROSINA B</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>469 NORTH HARRISON STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PRINCETON</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>08540-5297</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
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            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
                <value>2004-09-30</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>142.5</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>26.34</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
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                <transactionAcquiredDisposedCode>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
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                <underlyingSecurityShares>
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            <securityTitle>
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            <exerciseDate>
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            <expirationDate>
                <value>2007-05-08</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
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                <underlyingSecurityShares>
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            <securityTitle>
                <value>Stock Option</value>
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            <conversionOrExercisePrice>
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            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2001-05-07</value>
            </exerciseDate>
            <expirationDate>
                <value>2008-05-07</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>6000</value>
                </underlyingSecurityShares>
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            <postTransactionAmounts>
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        <derivativeHolding>
            <securityTitle>
                <value>Stock Option</value>
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            <conversionOrExercisePrice>
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            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2000-05-11</value>
            </exerciseDate>
            <expirationDate>
                <value>2010-05-11</value>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
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                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>3000</value>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
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                <value>Stock Option</value>
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            <conversionOrExercisePrice>
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            <exerciseDate>
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            <expirationDate>
                <value>2009-05-06</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
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                <underlyingSecurityShares>
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                <sharesOwnedFollowingTransaction>
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            <exerciseDate>
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            <expirationDate>
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            <underlyingSecurity>
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                <underlyingSecurityShares>
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                <sharesOwnedFollowingTransaction>
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                <value>Stock Option</value>
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                <value>20.8834</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2006-05-08</value>
            </exerciseDate>
            <expirationDate>
                <value>2013-05-08</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>7500</value>
                </underlyingSecurityShares>
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                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Option</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>22.9</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2005-05-09</value>
            </exerciseDate>
            <expirationDate>
                <value>2012-05-09</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>7500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Option</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>31.0934</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2007-05-06</value>
            </exerciseDate>
            <expirationDate>
                <value>2014-05-06</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>7500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
                    <value>7500</value>
                    <footnoteId id="F4"/>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">On September 1, 2004, the common stock of CHD Corporation split 3-for-2, as a result all references to shares held by the Reporting Person in this report have been adjusted to reflect the stock split.</footnote>
        <footnote id="F2">The phantom stock shares convert to common stock on a 1-for-1 basis.</footnote>
        <footnote id="F3">The phantom stock shares were acquired under the Church &amp; Dwight Co., Inc. Deferred Compensation Plan and expire on December 9, 2004, as prescribed by the Plan.</footnote>
        <footnote id="F4">On September 1, 2004, the common stock of CHD Corporation split 3-for-2, as a result all references to the number of shares and exercise price for each stock option held by the Reporting Person has been adjusted to reflect the stock split.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Andrew C. Forsell</signatureName>
        <signatureDate>2004-10-04</signatureDate>
    </ownerSignature>
</ownershipDocument>

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