Liam Bretherton (born 20 June 1979) is a former Ireland international rugby league footballer who played for the Wigan Warriors, Leigh Centurions, Warrington Wolves, Blackpool Panthers and Workington Town. He played on the wing. He played at representative level for Ireland at the 2000 Rugby League World Cup. Bretherton started his professional career at Warrington Wolves, making two appearances for the club during the 1997 season. After spending time on loan at Whitehaven in 1998, he signed for Wigan Warriors after a successful trial.