8-K

United States

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form 8-K
Current Report
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) December 15, 2008
S&T Bancorp, Inc. ____________________________________________________________  (Exact Name of Registrant as Specified in its Charter)
Pennsylvania_________________ (State or Other Jurisdiction of Incorporation)	0-12508_________________ (Commission File Number)	25-1434426_________________ (IRS Employer Identification No.)
800 Philadelphia Street, Indiana, PA __________________________________________ (Address of Principal Executive Offices)			15701 ___________________ Zip Code
Registrant's telephone number, including area code			(800) 325-2265
Former name or address, if changed since last report			Not Applicable

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

 Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

 Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

 Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

 Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01 - Other Events

The Board of Directors of S&T Bancorp, Inc. declared a $0.31 per share cash dividend at its regular meeting held December 15, 2008. The dividend is payable on January 23, 2009 to shareholders of record on December 31, 2008. This dividend represents a 3.8 percent annualized yield using the December 15, 2008 closing stock price of $32.21.

Item 9.01 - Financial Statements and Exhibits

(d) Exhibits. The exhibit listed on the Exhibit Index accompanying this Form 8-K is filed herewith.

(99.1) Press Release

SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed by the undersigned thereunto duly authorized.
December 15, 2008	S&T Bancorp, Inc. /s/ Robert E. Rout_________________ Robert E. Rout Senior Executive Vice President, Chief Financial Officer, Chief Administrative Officer and Secretary

Exhibit Index
Number	Description	Method of Filing
99.1	Press Release	Filed herewith

EX-99

Contact: Rob Jorgenson
724-465-5448

TO BE RELEASED
9:00 a.m., Tuesday, December 16, 2008

S&T Bancorp Declares Quarterly Cash Dividend

Indiana, Pennsylvania - The Board of Directors of S&T Bancorp, Inc. (NASDAQ: STBA) declared a $0.31 per share cash dividend at its regular meeting held December 15, 2008. The dividend is payable January 23, 2009 to shareholders of record on December 31, 2008. This dividend represents a 3.8 percent annualized yield using the December 15, 2008 closing price of $32.21.

Headquartered in Indiana, PA, S&T Bank, the principal subsidiary of S&T Bancorp, Inc. operates 55 offices within Allegheny, Armstrong, Blair, Butler, Cambria, Clarion, Clearfield, Indiana, Jefferson and Westmoreland counties. With assets of $4.5 billion, S&T Bancorp, Inc. stock trades on the NASDAQ Global Select Market System under the symbol STBA.

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