| Official Name: | Yefimovka |
| Native Name: | Ефимовка |
| Settlement Type: | Selo |
| Pushpin Map: | Russia Volgograd Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Volgograd Oblast |
| Subdivision Name3: | Kotovsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +4:00 |
| Coordinates: | 50.25°N 86°W[1] |
Yefimovka (ru|Ефимовка) is a rural locality (a selo) in Moiseyevskoye Rural Settlement, Kotovsky District, Volgograd Oblast, Russia. The population was 239 as of 2010.[2] There are 3 streets.[3]
Yefimovka is located in steppe, on Volga Upland, on the right bank of the Bolshaya Kazanka River, 13 km southwest of Kotovo (the district's administrative centre) by road. Moiseyevo is the nearest rural locality.[4]