| Official Name: | Deminsky |
| Native Name: | Деминский |
| Settlement Type: | Khutor |
| Pushpin Map: | Russia Volgograd Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Volgograd Oblast |
| Subdivision Name3: | Novoanninsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +4:00 |
| Coordinates: | 50.5667°N 59°W[1] |
Deminsky (Russian: Деминский) is a rural locality (a khutor) and the administrative center of Deminskoye Rural Settlement, Novoanninsky District, Volgograd Oblast, Russia. The population was 839 as of 2010.[2] There are 8 streets.[3]
Deminsky is located in steppe on the Khopyorsko-Buzulukskaya Plain, 37 km northwest of Novoanninsky (the district's administrative centre) by road. Kosovsky is the nearest rural locality.[4]