| Official Name: | Nizhnedolgovsky |
| Native Name: | Нижнедолговский |
| Settlement Type: | Khutor |
| Pushpin Map: | Russia Volgograd Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Volgograd Oblast |
| Subdivision Name3: | Nekhayevsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +4:00 |
| Coordinates: | 50.5167°N 81°W[1] |
Nizhnedolgovsky (Russian: Нижнедолговский) is a rural locality (a khutor) and the administrative center of Nizhnedolgovskoye Rural Settlement, Nekhayevsky District, Volgograd Oblast, Russia. The population was 530 as of 2010.[2] There are 13 streets.[3]
Nizhnedolgovsky is located on the bank of the Tishanka River, on Kalach Upland, 22 km northwest of Nekhayevskaya (the district's administrative centre) by road. Fedosovsky is the nearest rural locality.[4]