1 Exhibit 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 33-32044 and 333-16077) of M&T Bank Corporation of our report dated January 10, 2001, relating to the Financial Statements, which appear in this Form 10-K. We also consent to the reference to us under the heading "Experts" in such Registration Statements. /s/ PRICEWATERHOUSECOOPERS LLP Buffalo, New York March 9, 2001