Alex Gauthier (born December 8, 1976) is a Canadian football offensive lineman who is currently retired. He most recently played for the Saskatchewan Roughriders of the Canadian Football League. He was drafted first overall by the expansion Ottawa Renegades in the 2002 CFL Draft. He was a CFL East All-Star in 2007. Gauthier was signed by the Roughriders in 2011. He played CIS football for the Laval Rouge et Or.