Greg McAdam (born 18 February 1961) is a former Australian rules footballer who played with St Kilda in the AFL in 1985, and North Adelaide and Central District in the SANFL.
McAdam is an Indigenous Australian from Alice Springs. His younger brothers Adrian and Gilbert followed him into the AFL.
South Australia 26.16 (172) defeated Victoria 17.14 (116), at Football Park, 16 May 1983
Western Australia 24.14 (134) defeated South Australia 16.14 (110), at Subiaco Oval, 4 June 1983