-----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,
 II3moehIykaj2+N/dTvQMW98cLFUyPBS7DN0a2dbFQojeA0uHHJag59kth1jwgss
 sFXfMmUtYakfknwcSVmW5A==

<SEC-DOCUMENT>0001140361-08-026955.txt : 20081203
<SEC-HEADER>0001140361-08-026955.hdr.sgml : 20081203
<ACCEPTANCE-DATETIME>20081203112256
ACCESSION NUMBER:		0001140361-08-026955
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20081201
FILED AS OF DATE:		20081203
DATE AS OF CHANGE:		20081203

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BANKS DAVID R
		CENTRAL INDEX KEY:			0001192775

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12619
		FILM NUMBER:		081226707

	MAIL ADDRESS:	
		STREET 1:		C/O RALCORP HOLDINGS INC
		STREET 2:		800 MARKET ST
		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>2008-12-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001192775</rptOwnerCik>
            <rptOwnerName>BANKS DAVID R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RALCORP HOLDINGS INC.</rptOwnerStreet1>
            <rptOwnerStreet2>800 MARKET ST, SUITE 2600</rptOwnerStreet2>
            <rptOwnerCity>ST. LOUIS</rptOwnerCity>
            <rptOwnerState>MO</rptOwnerState>
            <rptOwnerZipCode>63101</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Ralcorp Holdings, Inc. Stock Equivalents</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2008-12-01</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>268</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>62.56</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>.01 Par Value Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>268</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>16460</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">REPORTING PERSON'S RETAINERS AND FEES EARNED AS A DIRECTOR OF ISSUER ARE DEFERRED INTO RALCORP HOLDINGS, INC. STOCK EQUIVALENTS UNDER THE ISSUER'S DEFERRED COMPENSATION PLAN FOR NON-MANAGEMENT DIRECTORS. REPORTING PERSON IS CREDITED WITH STOCK EQUIVALENTS AS SOON AS ADMINISTRATIVELY PRACTICABLE FOLLOWING THE MONTH IN WHICH SUCH RETAINERS AND FEES ARE EARNED, THE VALUE OF THESE STOCK EQUIVALENTS IS DISTRIBUTED (ON A ONE-FOR-ONE BASIS) IN THE FORM OF CASH UPON RETIREMENT FROM THE BOARD OF DIRECTORS.</footnote>
        <footnote id="F2">THE STOCK EQUIVALENTS HAVE NO FIXED EXERCISABLE OR EXPIRATION DATES.</footnote>
        <footnote id="F3">FRACTIONAL SHARES CREDITED MONTHLY ARE REFLECTED IN THE END OF MONTH TOTAL.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Charles G. Huber, Attorney-in-Fact for David R. Banks</signatureName>
        <signatureDate>2008-12-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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