Tags: Swimmer.
Matthew Matt James Welsh (born 18 November 1976 in Melbourne Victoria) is an Australian swimmer who is the former world champion in the backstroke and butterfly. He took two golds in 50 metres butterfly and 50 metres backstroke during one hour at the World Championships in Shanghai 2006. Welsh retired from professional swimming in March 2008 when he failed to secure a place in the team for the forthcoming Beijing Olympics.