Exhibit 23.1

KPMG SA

Tour EQHO
2 Avenue Gambetta
CS 60055
92066 Paris La Défense Cedex

Consent of Independent Registered Public Accounting Firm

We consent to the use of our report dated April 2, 2025, with respect to the consolidated financial statements of Nanobiotix S.A., incorporated herein by reference.

KPMG S.A.

/s/ Cédric Adens

Partner

Paris La Défense, France

May 14, 2025