Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the use in this Registration Statement on FormS-1 of Fusion Pharmaceuticals Inc. of our report dated April 3, 2020, except with respect to the matters that have removed the substantial doubt about the Company’s ability to continue as a going concern discussed in Note 1, as to which the date is June 5, 2020, relating to the financial statements of Fusion Pharmaceuticals Inc., which appears in this Registration Statement. We also consent to the reference to us under the heading “Experts” in such Registration Statement.
/s/ PricewaterhouseCoopers LLP
Boston, Massachusetts
June 5, 2020
