| Alf Day | |
| Fullname: | Alfred James Day |
| Birth Date: | 19 May 1884 |
| Birth Place: | Geelong, Victoria |
| Death Place: | Prahran, Victoria |
| Originalteam: | Corio |
| Statsend: | 1907 |
| Years1: | 1907 |
| Games Goals1: | 7 (1) |
Alfred James Day (19 May 1884 – 3 July 1968) was an Australian rules footballer who played for the Geelong Football Club in the Victorian Football League (VFL).[1]