Gavin Bayreuther (born May 12, 1994) is an American professional ice hockey defenseman for Lausanne HC in the National League (NL).

He has previously played with the Dallas Stars and Columbus Blue Jackets in the National Hockey League (NHL).

[6] In the pandemic delayed 2020–21 season, Bayreuther split time between the Blue Jackets and AHL affiliate, the Cleveland Monsters.

[7] In a surprise selection as an impending free agent, Bayreuther's tenure with the Kraken was short lived, as he returned to the Blue Jackets in signing a two-year contract on July 28, 2021.

As a free agent, Bayreuther signed his first contract abroad in agreeing to a one-year deal with Swiss club, Lausanne HC of the NL, on July 30, 2024.