| Birth Date: | 1945 7, df=y |
| Birth Place: | Moscow, Russia |
| Height: | 1.82m (05.97feet) |
| Weight: | 82kg (181lb) |
| Sport: | Swimming |
| Club: | Burevestnik Moscow |
| Show-Medals: | yes |
Oleg Fotin (Russian: Олег Фотин; born 19 July 1945) is a retired Russian swimmer. He competed at the 1964 Summer Olympics in the 200 m butterfly but failed to reach the finals.