| Gennadi Kostylev | |
| Fullname: | Gennadi Ivanovich Kostylev |
| Birth Date: | 27 September 1940 |
| Birth Place: | Kostyantynivka, Stalino Oblast, Ukrainian SSR |
| Position: | Midfielder |
| Youthclubs1: | FShM Moscow |
| Years1: | 1958 |
| Clubs1: | FC Trud Lytkarino |
| Years2: | 1958–1959 |
| Caps2: | 23 |
| Goals2: | 1 |
| Years3: | 1960–1963 |
| Years4: | 1964–1966 |
| Caps4: | 105 |
| Goals4: | 7 |
| Years5: | 1967–1970 |
| Manageryears1: | 1974–1975 |
| Manageryears2: | 1978 |
| Managerclubs2: | FC Zvezda Perm (assistant) |
| Manageryears3: | 1980–1982 |
| Manageryears4: | 1983 |
| Manageryears5: | 1984–1991 |
| Managerclubs5: | USSR youth national teams |
| Manageryears6: | 1992 |
| Managerclubs6: | PFC CSKA Moscow (assistant) |
| Manageryears7: | 1992–1993 |
| Managerclubs7: | PFC CSKA Moscow |
| Manageryears8: | 1996 |
| Manageryears9: | 1997–1998 |
| Managerclubs9: | PFC CSKA Moscow (assistant) |
| Manageryears10: | 1998 |
| Manageryears11: | 1999 |
| Managerclubs11: | FC Torpedo-ZIL Moscow (assistant) |
| Manageryears12: | 2000–2001 |
| Managerclubs12: | FC Rotor Volgograd (assistant) |
| Manageryears13: | 2001 |
| Manageryears14: | 2003 |
| Manageryears15: | 2004 |
| Managerclubs15: | FC Saturn Ramenskoye (assistant) |
| Manageryears16: | 2005–2006 |
| Manageryears17: | 2009–2010 |
| Managerclubs17: | FC Moscow (reserves) |
Gennadi Ivanovich Kostylev (ru|Геннадий Иванович Костылев; born 27 September 1940) is a Russian professional football coach and a former player.