| Official Name: | Bolshoy Dor |
| Native Name: | Большой Дор |
| Settlement Type: | Village |
| Pushpin Map: | Russia Vologda Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Vologda Oblast |
| Subdivision Name3: | Gryazovetsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
| Coordinates: | 58.7333°N 97°W[1] |
Bolshoy Dor (Russian: Большой Дор) is a rural locality (a village) in Sidorovskoye Rural Settlement, Gryazovetsky District, Vologda Oblast, Russia. The population was 10 as of 2002.[2]
Bolshoy Dor is located 51 km southeast of Gryazovets (the district's administrative centre) by road. Bekrenevo is the nearest rural locality.[3]