Peter Weightman (born 15 May 1949) is a former Australian rules football player and coach. He played with Fitzroy in the Victorian Football League (VFL). Weightman, who grew up playing in the Preston District Junior Football Association, played his only VFL game for Fitzroy in the 1969 VFL season. A rover, he kicked a goal in a 24-point loss to Hawthorn at Princes Park. When David Dickson resigned as Preston coach in 1994 due to a work promotion, Weightman returned as senior coach. He had another four season stint, making him Preston's longest serving coach.