-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 q+0iY683zzD5C5844/j9Qg==

<SEC-DOCUMENT>0001140361-08-022115.txt : 20080929
<SEC-HEADER>0001140361-08-022115.hdr.sgml : 20080929
<ACCEPTANCE-DATETIME>20080929185218
ACCESSION NUMBER:		0001140361-08-022115
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080925
FILED AS OF DATE:		20080929
DATE AS OF CHANGE:		20080929

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WILKINSON RONALD D
		CENTRAL INDEX KEY:			0001184296

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12619
		FILM NUMBER:		081095867

	MAIL ADDRESS:	
		STREET 1:		RALCORP HOLDINGS INC
		STREET 2:		800 MARKET STREET STE 2900
		CITY:			ST LOUIS
		STATE:			MO
		ZIP:			63101

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RALCORP HOLDINGS INC /MO
		CENTRAL INDEX KEY:			0001029506
		STANDARD INDUSTRIAL CLASSIFICATION:	GRAIN MILL PRODUCTS [2040]
		IRS NUMBER:				431766315
		STATE OF INCORPORATION:			MO
		FISCAL YEAR END:			0907

	BUSINESS ADDRESS:	
		STREET 1:		800 MARKET STREET
		STREET 2:		SUITE 2900
		CITY:			ST LOUIS
		STATE:			MO
		ZIP:			63101
		BUSINESS PHONE:		3148777000

	MAIL ADDRESS:	
		STREET 1:		800 MARKET STREET
		STREET 2:		SUITE 2900
		CITY:			ST LOUIS
		STATE:			MO
		ZIP:			63101

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NEW RALCORP HOLDINGS INC
		DATE OF NAME CHANGE:	19961223
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-09-25</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001029506</issuerCik>
        <issuerName>RALCORP HOLDINGS INC /MO</issuerName>
        <issuerTradingSymbol>RAH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001184296</rptOwnerCik>
            <rptOwnerName>WILKINSON RONALD D</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>800 MARKET STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ST. LOUIS</rptOwnerCity>
            <rptOwnerState>MO</rptOwnerState>
            <rptOwnerZipCode>63101</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP &amp; Dir. Prod. Supply</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Appreciation Right with Tax Wrthholding Right</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>66.07</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2008-09-25</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>25000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2018-09-24</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>$.01 Par Value Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>25000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>25000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Stock appreciation rights were granted under Issuer's 2007 Incentive Stock Plan and are exercisable at 33 1/3% on 9/25/11, 9/25/12 and 9/25/13.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Charles G. Huber, Jr., Attorney-in-Fact for Ronald D. Wilkinson</signatureName>
        <signatureDate>2008-09-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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