William Alexander Campbell (born 28 November 1961) is a retired international rugby union player who played 26 test matches and vice-captained for 15 for the Australian Wallabies in the position of lock from 1984 til 1990.
He played 58 matches and captained 26 times (21 wins and five losses) for the Queensland Reds.
Peter Jenkins named Campbell as one of the top 100 Wallabies in his book of the same name.
Campbell ended his rugby career at 29 to further his medical studies and focus on his growing family.