| Greg McAdam | |
| Birth Date: | 18 February 1961 |
| Originalteam: | (SANFL) |
| Draftpick: | No. 22, 1981 interstate draft |
| Height: | 179 cm |
| Weight: | 81 kg |
| Statsend: | 1985 |
| Years1: | 1977–1983 |
| Club1: | North Adelaide |
| Games Goals1: | 113 (157) |
| Years2: | 1985 |
| Club2: | St Kilda |
| Games Goals2: | 10 (13) |
| Sooyears1: | 1983 |
| Sooteam1: | Aboriginal All-Stars |
| Soogames Goals1: | 1 (4) |
| Repstatsend: | 1983 |
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.