| Sergei Olshansky | |
| Fullname: | Sergei Petrovich Olshansky |
| Height: | 1.79m (05.87feet) |
| Birth Date: | 28 May 1948 |
| Birth Place: | Moscow, Russian SFSR, Soviet Union |
| Position: | Defender |
| Currentclub: | FC Nika Moscow (general director) |
| Youthclubs1: | MELZ Plant Moscow |
| Youthclubs2: | FShM Moscow |
| Years1: | 1966–1968 |
| Years2: | 1969–1975 |
| Years3: | 1975 |
| Years4: | 1976–1979 |
| Clubs4: | PFC CSKA Moscow |
| Caps2: | 138 |
| Caps4: | 96 |
| Goals2: | 7 |
| Goals4: | 1 |
| Nationalyears1: | 1972–1977 |
| Nationalteam1: | USSR |
| Nationalcaps1: | 19 |
| Nationalgoals1: | 0 |
| Manageryears1: | 1983–1984 |
| Manageryears2: | 2003 |
| Manageryears3: | 2004 |
| Manageryears4: | 2005– |
| Managerclubs1: | PFC CSKA Moscow (assistant) |
| Managerclubs2: | FC Reutov (assistant) |
| Managerclubs3: | FC Saturn Yegoryevsk (assistant) |
| Managerclubs4: | FC Nika Moscow (general director) |
Sergei Petrovich Olshansky (Russian: Серге́й Петрович Ольшанский; born May 28, 1948, in Moscow) is a retired Soviet football player.
Currently, he works as a general director for FC Nika Moscow.
Olshansky made his debut for USSR on August 6, 1972, in a friendly against Sweden. He played in the qualifiers for 1974 FIFA World Cup, UEFA Euro 1976 and 1978 FIFA World Cup (USSR did not qualify for the final tournaments for any of those).