Cliff Deacon (born 10 June 1935) is a former Australian rules footballer who played with South Melbourne in the Victorian Football League (VFL). Deacon started his career at Williamstown and then joined Bendigo Football League club Kyneton, where he won a Michelsen in 1958. A ruckman, he was sought after by Hawthorn but as he had lived in South Melbourne territory while playing at Williamstown, the Swans refused to clear him and instead signed him up for themselves.