Career
He was an Australian test player and a former coach of the Canberra Raiders, Newcastle Knights and Illawarra Steelers. After coaching the Raiders in their second season in 1983, McMahon was the first coach of the Knights, who joined the NSWRL in 1988. He resigned during the 1991 season, and later coached the Illawarra Steelers.
Despite signing a three-year contract, he was sacked at the end of the 1996 season, his first at the club
Allan McMahon died in May 2003, at his home in Wollongong, aged 48.