| Sergei Tyumentsev | |
| Fullname: | Sergei Yuryevich Tyumentsev |
| Birth Date: | 9 August 1976 |
| Position: | Midfielder |
| Years1: | 1992 |
| Years2: | 1993–1998 |
| Years3: | 1998 |
| Years4: | 1999 |
| Years5: | 2000 |
| Years6: | 2001–2006 |
| Years7: | 2007–2008 |
| Years8: | 2008 |
| Years9: | 2009 |
| Clubs3: | FC Irtysh Omsk |
| Clubs9: | FC Sakhalin Yuzhno-Sakhalinsk |
| Caps1: | 4 |
| Caps2: | 148 |
| Caps3: | 15 |
| Caps4: | 30 |
| Caps5: | 24 |
| Caps6: | 198 |
| Caps7: | 25 |
| Caps8: | 14 |
| Caps9: | 21 |
| Goals1: | 0 |
| Goals2: | 12 |
| Goals3: | 0 |
| Goals4: | 3 |
| Goals5: | 3 |
| Goals6: | 8 |
| Goals7: | 2 |
| Goals8: | 0 |
| Goals9: | 0 |
Sergei Yuryevich Tyumentsev (Russian: Серге́й Юрьевич Тюменцев; born 9 August 1976) is a former Russian professional football player.
He played 7 seasons in the Russian Football National League for FC Irtysh Omsk and FC SKA-Energiya Khabarovsk.