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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001140361-09-007742.txt : 20090323
<SEC-HEADER>0001140361-09-007742.hdr.sgml : 20090323
<ACCEPTANCE-DATETIME>20090323172218
ACCESSION NUMBER:		0001140361-09-007742
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20090319
FILED AS OF DATE:		20090323
DATE AS OF CHANGE:		20090323

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PATRIOT NATIONAL BANCORP INC
		CENTRAL INDEX KEY:			0001098146
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				061559137
		STATE OF INCORPORATION:			CT
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		900 BEDFORD ST
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06901
		BUSINESS PHONE:		2033247500

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DECARO ANGELO
		CENTRAL INDEX KEY:			0001103130

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-29599
		FILM NUMBER:		09699491
</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>2009-03-19</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001098146</issuerCik>
        <issuerName>PATRIOT NATIONAL BANCORP INC</issuerName>
        <issuerTradingSymbol>PNBK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001103130</rptOwnerCik>
            <rptOwnerName>DECARO ANGELO</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PATRIOT NATIONAL BANK</rptOwnerStreet1>
            <rptOwnerStreet2>900 BEDFORD STREET</rptOwnerStreet2>
            <rptOwnerCity>STAMFORD</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06901</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman and CEO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Trustee For Others</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>745700</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-03-19</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1000</value>
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                <transactionPricePerShare>
                    <value>3.90</value>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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            <postTransactionAmounts>
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                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
                <value>2009-03-20</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
                <value></value>
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            <transactionAmounts>
                <transactionShares>
                    <value>45</value>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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            </transactionAmounts>
            <postTransactionAmounts>
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        <nonDerivativeTransaction>
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            <transactionDate>
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            <transactionCoding>
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            <transactionTimeliness>
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            <transactionAmounts>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
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            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
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            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Angelo De Caro by William W. Bouton III POA</signatureName>
        <signatureDate>2009-03-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>poa1.htm
<DESCRIPTION>POWER OF ATTORNEY
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NATIONAL BANCORP, INC.</font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">POWER OF
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undersigned hereby constitutes and appoints the partners of the law firm
Hinckley, Allen &amp; Snyder LLP, individually or collectively my true and
lawful attorneys with full power to sign for me and in my name, in the
capacities indicated below with respect to Patriot National Bancorp, Inc., Forms
4 and 5, and such other Forms or materials that are or may be promulgated by the
Securities and Exchange Commission in connection with compliance with Section
16(a) of the Securities and Exchange Act of 1934 and Rule 16a-3 under such Act,
and generally to do all such things in my name and behalf in such capacities,
granting unto said attorney-in-fact and agents, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in connection therewith, as fully to all intents and purposes as such
person might or could do in person, hereby ratifying and confirming my signature
as it may be signed by my said attorneys, or any of them, to said Forms and any
and all amendments thereto.</font></div>
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            </td>
            <td valign="top" width="50%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Angelo De
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              <div style="MARGIN-LEFT: 54pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Patriot National
      </font></div>
              <div style="MARGIN-LEFT: 54pt"><font size="2">Bancorp, Inc.
      Title:&#160;</font></div>
              <div style="MARGIN-LEFT: 54pt">&#160;</div>
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            <td valign="top" width="50%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Chairman</font></td>
          </tr>
          <tr>
            <td width="50%">
              <div style="MARGIN-LEFT: 54pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Date:&#160;&#160;&#160;&#160;</font></div>
              <div style="MARGIN-LEFT: 54pt">&#160;</div>
            </td>
            <td valign="top" width="50%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman">January 7,
      2009</font></td>
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    <div>&#160;</div>
    <div style="DISPLAY: block; TEXT-INDENT: 0pt; LINE-HEIGHT: 1"><br>&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; TEXT-INDENT: 0pt; LINE-HEIGHT: 1"><br></div>
    <div style="DISPLAY: block; TEXT-INDENT: 0pt; LINE-HEIGHT: 1"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; TEXT-INDENT: 0pt; LINE-HEIGHT: 1"><br></div>
    <div style="DISPLAY: block; TEXT-INDENT: 0pt; LINE-HEIGHT: 1"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
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