| Official Name: | Kazachok |
| Native Name: | Казачок |
| Native Name Lang: | ru |
| Settlement Type: | Selo |
| Pushpin Map: | Russia Belgorod Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Type1: | Region |
| Subdivision Name1: | Belgorod Oblast |
| Subdivision Type2: | County |
| Subdivision Type3: | District |
| Subdivision Name3: | Starooskolsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
| Coordinates: | 51.1°N 90°W[1] |
Kazachok (Russian: Казачок) is a rural locality (a selo) and the administrative center of Kazachenskoye Rural Settlement, Starooskolsky District, Belgorod Oblast, Russia. The population was 486 as of 2010.[2] There are 9 streets.
Kazachok is located 34 km south of Stary Oskol (the district's administrative centre) by road. Golofeyevka is the nearest rural locality.[3]