| Leonid Masunov | |
| Native Name: | Леонід Іванович Масунов |
| Native Name Lang: | uk |
| Full Name: | Leonid Ivanovych Masunov |
| Nationality: | Ukrainian |
| National Team: | Soviet Union |
| Citizenship: | Soviet Union→Ukraine |
| Birth Date: | 5 May 1962 |
| Birth Place: | Omsk, Soviet Russia, Soviet Union |
| Residence: | Odesa |
| Alma Mater: | Odesa State Pedagogical Institute (1988) |
| Occupation: | Academic personnel |
| Country: | Soviet Union, Soviet Ukraine |
| Sport: | Track and field |
| Event: | 800 m, 1500 m |
| Event Type: | Middle-distance running |
| Club: | Armed Forces |
| Retired: | 1988 |
| Show-Medals: | yes |
Leonid Ivanovych Masunov (Ukrainian: Леонід Іванович Масунов, born 5 May 1962) is a retired Ukrainian middle-distance runner who represented Soviet Union at the 1985 European Athletics Indoor Championships in 800 and 1500 metres where he won a bronze medal in 800 metres. He also represented Soviet Union at the 1987 World Championships in Athletics in 1500 metres.
In Soviet national competitions, Masunov represented Ukraine and won several medals at the national championships, both indoors and outdoors.
He is a current Ukrainian record holder in 800 metres (1:45.08) set in 1984 and held the indoor national record in the same event between 1985 and 2004.
After retirement, he worked as an athletics coach in Odesa (1990-1998).
Since 1998 he has been a teacher at the .[1]
| 1985 | European Athletics Indoor Championships | Pireus | 800 m | |||
| h2 | 1500 m | |||||
| 1987 | World Championships | Rome | 1sf8 | 1500 m |