Rene Fernand "Fern" Gauthier (b. August 31, 1919 in Chicoutimi, Quebec - d. November 7, 1992) is a retired Canadian professional ice hockey forward who played 229 games in the National Hockey League for the Montreal Canadiens, New York Rangers, and Detroit Red Wings.
He played for the senior Shawinigan Falls Cataractes from 1938 to 1942 and then turned pro in 1942-43 in the American Hockey League. The next season he was loaned by the Montreal Canadiens to the New York Rangers as part of the deal for Phil Watson. He was returned to the Canadiens in 1944-45 and played the season for them. In 1945 Gauthier was traded to the Detroit Red Wings for Billy Reay.
From 1945 to 1949 Gauthier aplit his time between the Wings and the Indianapolis Capitals. In 1949 he was traded to the St. Louis Flyers of the American Hockey League where he played for a season. In 1950-51 he played for the Sherbrooke Saints and the Quebec Aces of the Quebec Senior Hockey League. He finished off his career in 1951-52 after playing for the senior St Laurent Castors.
In the NHL, Gauthier played 229 games and scored 46 goals and 50 assists.