Consent of Independent Auditors

We consent to the incorporation by reference in the Registration Statements
(Form S-8, No. 33-60530 and Form S-3, No. 3-44164) pertaining to the 1992
Incentive Stock Option Plan and the Dividend Reinvestment Plan of S&T
Bancorp, Inc. and subsidiaries, respectively, of our report dated January
12, 2001, with respect to the consolidated financial statements of S&T
Bancorp, Inc. and subsidiaries incorporated by reference in this Annual
Report (Form 10-K) for the year ended December 31, 2000.

Ernst & Young, LLP

Pittsburgh, Pennsylvania
March 23, 2001