M&T Bank (MTB) 10-K 2017 FY Annual report

EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 33-32044, 333-43175,  333-16077, 333-40640, 333-84384, 333-127406, 333-150122, 333-164015, 333-163992, 333-160769, 333-159795, 333-170740, 333-189099,  333-184504, 333-189097 and 333-184411) and Form S-3 (Nos. 333-182348 and 333-207030) of M&T Bank Corporation of our report dated February 22, 2018, relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP

Buffalo, New York

February 22, 2018