| Official Name: | Bychok |
| Native Name: | Бычок |
| Native Name Lang: | ru |
| Settlement Type: | Selo |
| Pushpin Map: | Russia Voronezh Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Type1: | Region |
| Subdivision Name1: | Voronezh Oblast |
| Subdivision Type2: | County |
| Subdivision Type3: | District |
| Subdivision Name3: | Petropavlovsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
| Coordinates: | 50.0167°N 86°W[1] |
Bychok (Russian: links=no|Бычок) is a rural locality (a selo) and the administrative center of Bychkovskoye Rural Settlement, Petropavlovsky District, Voronezh Oblast, Russia. The population was 972 as of 2010.[2] There are 25 streets.[3]
Bychok is located 12 km southwest of Petropavlovka (the district's administrative centre) by road. Zamostye is the nearest rural locality.[4]