-----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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 rcjA2s/0z5zFuyizOMr2pg==

<SEC-DOCUMENT>0001179110-06-011737.txt : 20060523
<SEC-HEADER>0001179110-06-011737.hdr.sgml : 20060523
<ACCEPTANCE-DATETIME>20060523144324
ACCESSION NUMBER:		0001179110-06-011737
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060518
FILED AS OF DATE:		20060523
DATE AS OF CHANGE:		20060523

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Neal Richard I
		CENTRAL INDEX KEY:			0001293749

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-04252
		FILM NUMBER:		06861152

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		(410)628-3662

	MAIL ADDRESS:	
		STREET 1:		C/O UNITED INDUSTRIAL CORPORATION
		STREET 2:		124 INDUSTRY LANE
		CITY:			HUNT VALLEY
		STATE:			MD
		ZIP:			21030

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			UNITED INDUSTRIAL CORP /DE/
		CENTRAL INDEX KEY:			0000101271
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
		IRS NUMBER:				952081809
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1214

	BUSINESS ADDRESS:	
		STREET 1:		124 INDUSTRY LANE
		CITY:			HUNT VALLEY
		STATE:			MD
		ZIP:			21030
		BUSINESS PHONE:		(410) 628-3500

	MAIL ADDRESS:	
		STREET 1:		124 INDUSTRY LANE
		CITY:			HUNT VALLEY
		STATE:			MD
		ZIP:			21030

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TOPP INDUSTRIES CORP
		DATE OF NAME CHANGE:	19710510

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HAYES MANUFACTURING CORP
		DATE OF NAME CHANGE:	19660911
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4/A -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2006-05-18</periodOfReport>

    <dateOfOriginalSubmission>2006-05-22</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000101271</issuerCik>
        <issuerName>UNITED INDUSTRIAL CORP /DE/</issuerName>
        <issuerTradingSymbol>UIC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001293749</rptOwnerCik>
            <rptOwnerName>Neal Richard I</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O UNITED INDUSTRIAL CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>124 INDUSTRY LANE</rptOwnerStreet2>
            <rptOwnerCity>HUNT VALLY</rptOwnerCity>
            <rptOwnerState>MD</rptOwnerState>
            <rptOwnerZipCode>21030</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>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>48.70</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2006-05-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2016-05-18</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The option becomes fully vested and exercisable on the date of the Issuer's next Annual Meeting of Stockholders provided Mr. Neal is still a director of the Issuer on such date.</footnote>
    </footnotes>

    <remarks>This Amendment is made to correct the Date of Exercisability specified in Footnote 1.</remarks>

    <ownerSignature>
        <signatureName>Cynthia Eaton, as Attorney in Fact for Richard I. Neal</signatureName>
        <signatureDate>2006-05-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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