| Official Name: | Sergeyevka |
| Native Name: | Сергеевка |
| Settlement Type: | Selo |
| Pushpin Map: | Russia Amur Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Amur Oblast |
| Subdivision Name3: | Blagoveshchensky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +9:00 |
| Coordinates: | 50.75°N 144°W[1] |
Sergeyevka (Russian: Сергеевка) is a rural locality (a selo) and the administrative center of Sergeyevsky Selsoviet of Blagoveshchensky District, Amur Oblast, Russia. The population was 420 as of 2018.[2] There are 8 streets.
Sergeyevka is located on the left bank of the Amur River, 68 km north of Blagoveshchensk (the district's administrative centre) by road. Bibikovo is the nearest rural locality.[3]