Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in this Registration Statement on Form S-3 of Fusion Pharmaceuticals Inc. of our report dated March 25, 2021 relating to the financial statements, which appears in Fusion Pharmaceuticals Inc.’s Annual Report on Form 10-K for the year ended December 31, 2020. We also consent to the reference to us under the heading “Experts” in such Registration Statement.
| /s/ PricewaterhouseCoopers LLP |
| Boston, Massachusetts |
| July 2, 2021 |
