8-K

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) September 17, 2007
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
___________________

Item 5.02 (c)- Departure of Directors or Principal Officers, Election of Directors; Appointment of Principal Officers

James C. Miller, chairman and chief executive officer of S&T Bancorp, Inc, announced today that David L. Krieger was appointed a Director of S&T Bancorp, Inc. and S&T Bank at its regular Board of Directors meeting on September 17, 2007. Mr. Kreiger has a long and distinguished history with S&T. He joined S&T Bank in 1984 and is currently Senior Executive Vice President, and plans to retire from that position on December 31, 2007.

Item 9.01 - Financial Statements and Exhibits

(c) Exhibits

(99) 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.
September 17, 2007	S&T Bancorp, Inc. /s/ Robert E. Rout                         Robert E. Rout Senior Executive Vice President, Chief Financial Officer and Secretary

EX-99

FOR IMMEDIATE RELEASE Contact: Robert Jorgenson

September 18, 2007 724.465.5448

S&T Bank Names New Director

-- Appointment Announced at Board of Directors Meeting --

Indiana, Pennsylvania - S&T Bank (NASDAQ: STBA), a full-service financial institution with branch locations in 10 Pennsylvania counties, announced the appointment of David L. Krieger as Director of S&T Bancorp Inc. and S&T Bank. James C. Miller, chairman and CEO of S&T Bancorp, Inc., made the official announcement yesterday following the Board of Directors September 17, 2007 meeting.

"We are pleased to announce the appointment of Dave Krieger to our Board of Directors," stated Miller. "Dave joined S&T Bank as head of commercial lending in 1984 and has been an integral member of our team who has contributed to our profitable growth throughout the years."

"Dave's appointment to our Board of Directors will help preserve his vast experience and special relationship with many of our most important constituents following his planned retirement," commented Todd Brice, president and chief operating officer, S&T Bank.

Krieger, currently a senior executive vice president, will retire from his position at the end of the year. Prior to joining S&T Bank, Dave worked at Equibank in Pittsburgh, PA as a senior vice president and graduated from Clarion University. Dave and his wife, Donna, reside in Indiana, Pennsylvania.

- more -

About S&T Bank

Headquartered in Indiana, Pa., S&T Bancorp Inc. operates 50 offices within Allegheny, Armstrong, Blair, Butler, Cambria, Clarion, Clearfield, Indiana, Jefferson and Westmoreland counties. S&T Bancorp Inc. has assets of $3.4 billion, and its stock trades on the NASDAQ Global Select Market under the symbol STBA. For more information, visit stbank.com.