Finn Gilbert Dahmen (born 27 March 1998) is a German professional footballer who plays as a goalkeeper for Bundesliga club FC Augsburg.^[2]

Dahmen began his youth career at FC Bierstadt and Eintracht Frankfurt, before joining the academy of Mainz 05 in 2008. In 2017, he was promoted to Mainz’s second team, and made his debut in the Regionalliga Südwest on 30 July 2017 against FSV Frankfurt, which finished as a 3–0 home win.^[3] On 26 March 2018, Dahmen signed a long-term contract with the club until 2020.^[4] On 11 April 2018, he scored for Mainz II in the second minute of second-half stoppage time against VfB Stuttgart II to secure a 1–1 draw, having scored with a backheel after coming forward for a Mainz free kick.^[5] On 10 May 2019, he signed a long-term contract with the club until 30 June 2023.^[6] He made his professional debut for Mainz’s first team on 3 January 2021, starting in the away match against Bayern Munich. Having led 2–0 at half-time, the match finished as a 5–2 loss for Mainz.^[7] Head coach Bo Svensson selected Dahman for the last two matches of the 2021–2022 season.^[8] In February 2023, he announced that he would be leaving Mainz at the end of the season to play regular first-team football.^[9]