| Official Name: | Grudne-Yermaki |
| Native Name: | Грудне-Ермаки |
| Settlement Type: | Khutor |
| Pushpin Map: | Russia Volgograd Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Volgograd Oblast |
| Subdivision Name3: | Novonikolayevsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +4:00 |
| Coordinates: | 51.05°N 89°W[1] |
Grudne-Yermaki (Russian: Грудне-Ермаки) is a rural locality (a khutor) in Khopyorskoye Rural Settlement, Novonikolayevsky District, Volgograd Oblast, Russia. The population was 50 as of 2010.[2]
Grudne-Yermaki is located on the Khopyorsko-Buzulukskaya Plain, 45 km ENE of Novonikolayevsky (the district's administrative centre) by road. Khopyorsky is the nearest rural locality.[3]