Exhibit 23(a)
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in this Registration Statement on Form S-3 of M&T Bank Corporationof our report dated February 22, 2018 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in M&T Bank Corporation’s Annual Report on Form10-K for the year ended December 31, 2017. We also consent to the referenceto us under the heading“Experts”in such Registration Statement.
/s/ PricewaterhouseCoopers LLP
Buffalo, NY
October 1, 2018