| Sergey Kovalchuk | |
| Fullname: | Sergey Petrovich Kovalchuk |
| Birth Date: | 16 December 1973 |
| Position: | Midfielder |
| Years1: | 1990–1991 |
| Years2: | 1992–1995 |
| Years3: | 1996 |
| Years4: | 1996–2004 |
| Clubs1: | Impuls Brest |
| Clubs2: | Brestbytkhim Brest |
| Clubs3: | Kobrin |
| Clubs4: | Dinamo Brest |
| Caps3: | 19 |
| Caps4: | 176 |
| Goals3: | 2 |
| Goals4: | 15 |
| Manageryears1: | 2005–2007 |
| Manageryears2: | 2008–2009 |
| Manageryears3: | 2009 |
| Manageryears4: | 2009–2011 |
| Manageryears5: | 2011–2012 |
| Manageryears6: | 2012–2013 |
| Manageryears7: | 2013–2016 |
| Manageryears8: | 2016–2019 |
| Manageryears9: | 2018 |
| Manageryears10: | 2020–2022 |
| Managerclubs1: | Dinamo Brest (reserves) |
| Managerclubs2: | Dinamo Brest (assistant) |
| Managerclubs3: | Dinamo Brest (caretaker) |
| Managerclubs4: | Dinamo Brest (assistant) |
| Managerclubs5: | Dinamo Brest |
| Managerclubs6: | Dinamo Brest (reserves) |
| Managerclubs7: | Dinamo Brest |
| Managerclubs8: | Dinamo Brest (sports director) |
| Managerclubs9: | Dinamo Brest (caretaker) |
| Managerclubs10: | Dinamo Brest |
Sergey Petrovich Kovalchuk (Belarusian: Сяргей Пятровіч Кавальчук; born 16 December 1973) is a Belarusian professional football coach and a former player. Since 2005, he has worked for Dinamo Brest in various coaching positions.[1]