| Official Name: | Bolshaya Mushnya |
| Native Name: | Большая Мушня |
| Settlement Type: | Village |
| Pushpin Map: | Russia Vologda Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Vologda Oblast |
| Subdivision Name3: | Sheksninsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
| Coordinates: | 59.3833°N 60°W[1] |
Bolshaya Mushnya (Russian: Большая Мушня) is a rural locality (a village) in Yershovskoye Rural Settlement, Sheksninsky District, Vologda Oblast, Russia. The population was 9 as of 2002.[2]
Bolshaya Mushnya is located 27 km north of Sheksna (the district's administrative centre) by road. Malaya Mushnya is the nearest rural locality.[3]