EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-152765, 333-174670, 333-177030, 333-196393, 333-206111, 333-212412, 333-256252 and 333-265553 on Form S-8 and Registration Statement No. 333-253472 on Form S-3 of our reports dated February 22, 2023, relating to the financial statements of ANSYS, Inc., and the effectiveness of ANSYS, Inc. and subsidiaries’ internal control over financial reporting appearing in this Annual Report on Form 10-K of ANSYS, Inc. for the year ended December 31, 2022.

/s/ Deloitte & Touche LLP

Pittsburgh, Pennsylvania

February 22, 2023