| Nikolai Kashentsev | |
| Fullname: | Nikolai Nikolayevich Kashentsev |
| Birth Date: | 19 July 1974 |
| Birth Place: | Barnaul, Russian SFSR |
| Currentclub: | FC Khimik Dzerzhinsk (assistant coach) |
| Position: | Defender/Midfielder/Striker |
| Years1: | 1991–1995 |
| Years2: | 1996–1999 |
| Years3: | 2000 |
| Years4: | 2001 |
| Years5: | 2002 |
| Years6: | 2004–2005 |
| Years7: | 2006–2007 |
| Clubs7: | FJ Buxoro |
| Caps1: | 139 |
| Caps2: | 101 |
| Caps3: | 23 |
| Caps4: | 9 |
| Caps5: | 1 |
| Caps6: | 23 |
| Caps7: | 29 |
| Goals1: | 20 |
| Goals2: | 7 |
| Goals3: | 0 |
| Goals4: | 0 |
| Goals5: | 0 |
| Goals6: | 0 |
| Goals7: | 1 |
| Manageryears1: | 2021–2022 |
| Managerclubs1: | FC Khimik Dzerzhinsk (caretaker) |
| Manageryears2: | 2021– |
| Managerclubs2: | FC Khimik Dzerzhinsk (assistant) |
Nikolai Nikolayevich Kashentsev (ru|Николай Николаевич Кашенцев; born 19 July 1974) is a Russian professional football coach and a former player. He is an assistant coach of FC Khimik Dzerzhinsk.
He made his professional debut in the Soviet Second League in 1991 for FC Dynamo Barnaul. He played 5 games in the UEFA Intertoto Cup 1997 for FC Lokomotiv Nizhny Novgorod.
He is a brother of Yevgeni Kashentsev.