| Brian McMahon | |
| Fullname: | Brian J. McMahon |
| Birth Date: | 15 July 1939 |
| Originalteam: | South Warrnambool |
| Height: | 183 cm |
| Weight: | 80 kg |
| Statsend: | 1963 |
| Years1: | 1962–1963 |
| Club1: | St Kilda |
| Games Goals1: | 10 (0) |
Brian McMahon (born 15 July 1939) is a former Australian rules footballer who played with St Kilda in the Victorian Football League (VFL).[1]
McMahon was recruited from South Warrnambool and played 10 senior games for St Kilda, in the 1962 and 1963 VFL seasons.[2]