<SEC-DOCUMENT>0000719220-17-000015-index.html : 20170405
<SEC-HEADER>0000719220-17-000015.hdr.sgml : 20170405
<ACCEPTANCE-DATETIME>20170405133057
ACCESSION NUMBER:		0000719220-17-000015
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		6
CONFORMED PERIOD OF REPORT:	20170515
FILED AS OF DATE:		20170405
DATE AS OF CHANGE:		20170405
EFFECTIVENESS DATE:		20170405

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			S&T BANCORP INC
		CENTRAL INDEX KEY:			0000719220
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				251434426
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-12508
		FILM NUMBER:		17741957

	BUSINESS ADDRESS:	
		STREET 1:		800 PHILADELPHIA STREET
		STREET 2:		PO BOX 190
		CITY:			INDIANA
		STATE:			PA
		ZIP:			15701
		BUSINESS PHONE:		724-427-2347

	MAIL ADDRESS:	
		STREET 1:		800 PHILADELPHIA STREET
		STREET 2:		PO BOX 190
		CITY:			INDIANA
		STATE:			PA
		ZIP:			15701
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEF 14A
<SEQUENCE>1
<FILENAME>stba-2017proxy.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: stba-2017proxy.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>erniedraganzasignaturea01.jpg
<TEXT>
Document 2 - file: erniedraganzasignaturea01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>erniedraganzasignaturea02.jpg
<TEXT>
Document 3 - file: erniedraganzasignaturea02.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>stbancorp.jpg
<TEXT>
Document 4 - file: stbancorp.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>stbancorpa01.jpg
<TEXT>
Document 5 - file: stbancorpa01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>tbsig.jpg
<TEXT>
Document 6 - file: tbsig.jpg

</DOCUMENT>
</SEC-DOCUMENT>