-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 QI04PtFb9TqPF06p2ibyrKpKvDrB98A8OnTIqNt1erNy8bgCy4YB9KoEyzGIpnDF
 Ik92jCJdy2gOcKp0PcXfjg==

<SEC-DOCUMENT>0001268186-06-000001.txt : 20060224
<SEC-HEADER>0001268186-06-000001.hdr.sgml : 20060224
<ACCEPTANCE-DATETIME>20060224151442
ACCESSION NUMBER:		0001268186-06-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060223
FILED AS OF DATE:		20060224
DATE AS OF CHANGE:		20060224

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			FORTUNE ROSALEE R
		CENTRAL INDEX KEY:			0001268186

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09063
		FILM NUMBER:		06642646

	MAIL ADDRESS:	
		STREET 1:		C/O MARITRANS INC.
		STREET 2:		TWO HARBOUR PLACE, SUITE 1200
		CITY:			TAMPA
		STATE:			FL
		ZIP:			33602

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MARITRANS INC /DE/
		CENTRAL INDEX KEY:			0000810113
		STANDARD INDUSTRIAL CLASSIFICATION:	WATER TRANSPORTATION [4400]
		IRS NUMBER:				510343903
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1818 MARKET STREET SUITE 3540
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19103
		BUSINESS PHONE:		2158641200

	MAIL ADDRESS:	
		STREET 1:		1818 MARKET STREET SUITE 3540
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19103

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MARITRANS PARTNERS L P
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-02-23</periodOfReport>

    <issuer>
        <issuerCik>0000810113</issuerCik>
        <issuerName>MARITRANS INC /DE/</issuerName>
        <issuerTradingSymbol>TUG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001268186</rptOwnerCik>
            <rptOwnerName>FORTUNE ROSALEE R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MARITRANS INC.</rptOwnerStreet1>
            <rptOwnerStreet2>TWO HARBOUR PLACE, SUITE 1200</rptOwnerStreet2>
            <rptOwnerCity>TAMPA</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33602</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP MOC LP</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-02-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1449</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>22.55</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3026</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Judith M. Cortina, POA</signatureName>
        <signatureDate>2006-02-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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