| Geoff MacIlwain | |
| Fullname: | Geoff MacIlwain |
| Birth Date: | 28 October 1963 |
| Originalteam: | Doncaster[1] |
| Height: | 193 cm |
| Weight: | 90 kg |
| Statsend: | 1986 |
| Years1: | 1986 |
| Club1: | Richmond |
| Games Goals1: | 2 (0) |
Geoff MacIlwain (born 28 October 1963) is a former Australian rules footballer who played with Richmond in the Victorian Football League (VFL).
MacIlwain was already 22 when he first played for Richmond.[2] He made two senior appearances in total for the club, both early in the 1986 VFL season.[2] The former Doncaster player would go on to win back to back Henderson Medals with Maryborough, in 1990 and 1991.