Power of Attorney for Section 16 Reporting Obligations

This filing is an exhibit (24.1) detailing a Limited Power of Attorney granted by Barry Greene, a director of Dyne Therapeutics, Inc., to John Cox, Erick Lucera, Dan Wilson, and Ron Caponigro. This power of attorney authorizes the appointees to execute and file all necessary Section 16 reports (Forms 3, 4, and 5) with the SEC on behalf of Mr. Greene. It also grants them the authority to obtain information about transactions in the company's securities and to take any other necessary actions. The power of attorney remains in effect until Mr. Greene is no longer required to file these reports or until it is revoked. The filing also clarifies that neither the company nor the appointed attorneys-in-fact assume liability for Mr. Greene's compliance with Section 16 of the Exchange Act.