| Sergei Troitskiy | |
| Fullname: | Sergei Gennadyevich Troitskiy |
| Birth Date: | 14 February 1961 |
| Birth Place: | Bryansk, Russian SFSR |
| Position: | Defender |
| Youthclubs1: | FC Dynamo Bryansk |
| Years1: | 1979–1985 |
| Clubs1: | FC Dynamo Bryansk |
| Caps1: | 170 |
| Goals1: | 10 |
| Years2: | 1986 |
| Clubs2: | FC Torpedo Moscow |
| Caps2: | 12 |
| Goals2: | 0 |
| Years3: | 1987–1991 |
| Clubs3: | FC Dynamo Bryansk |
| Caps3: | 171 |
| Goals3: | 8 |
| Years4: | 1992 |
| Caps4: | 15 |
| Goals4: | 0 |
| Years5: | 1992 |
| Caps5: | 1 |
| Goals5: | 0 |
| Years6: | 1992–1996 |
| Caps6: | 100 |
| Goals6: | 1 |
| Years7: | 1996–1997 |
| Caps7: | 48 |
| Goals7: | 5 |
| Years8: | 1998 |
| Clubs8: | FC Dynamo Bryansk |
| Caps8: | 27 |
| Goals8: | 0 |
| Manageryears1: | 2000–2003 |
| Managerclubs1: | FC Dynamo-D Bryansk |
Sergei Gennadyevich Troitskiy (Russian: Серге́й Геннадьевич Троицкий; born 14 February 1961) is a former Russian professional footballer.
He made his professional debut in the Soviet Second League in 1981 for FC Dynamo Bryansk.