| Birth Date: | 4 June 1936 |
| Birth Place: | Moscow, Russian SFSR, Soviet Union |
| Death Date: | 14 June 2001 (aged 65) |
| Sport: | Triple jump, long jump |
| Pb: | 16.70 m (1959, TJ) 7.77 m (1959, LJ) |
| Club: | Burevestnik Moscow, Armed Forces sports society[1] |
| Show-Medals: | yes |
Oleg Georgiyevich Fedoseyev (Russian: Олег Георгиевич Федосеев, 4 June 1936 – 14 June 2001) was a Russian athlete. He was a Soviet champion in the long jump in 1956 and 1958, but finished only eighth at the 1956 Olympics and 1958 European Championships. Fedoseyev then changed to triple jump and in 1959 won a Soviet title and set a world record in this event at 16.70 m. He later won a bronze medal at the 1962 European Championships and a silver at the 1964 Olympics. He also competed in sprint at the national level and in 1962 won a Soviet title in the 4 × 100 m relay.[2]