| Official Name: | Sergeyevka |
| Native Name: | Сергеевка |
| Settlement Type: | Selo |
| Pushpin Map: | Russia Altai Krai#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Altai Krai |
| Subdivision Name3: | Kulundinsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +7:00 |
| Coordinates: | 52.65°N 97°W[1] |
Sergeyevka (Russian: Сергеевка) is a rural locality (a selo) in Zlatopolinsky Selsoviet, Kulundinsky District, Altai Krai, Russia. The population was 152 as of 2013.[2] There is 1 street.
Sergeyevka is located 34 km northeast of Kulunda (the district's administrative centre) by road. Zlatopol is the nearest rural locality.[3]