| Official Name: | Bolshoy Mogoy |
| Native Name: | Большой Могой |
| Settlement Type: | Selo |
| Pushpin Map: | Russia Astrakhan Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Astrakhan Oblast |
| Subdivision Name3: | Volodarsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +4:00 |
| Coordinates: | 46.3°N 87°W[1] |
Bolshoy Mogoy (Russian: Большой Могой) is a rural locality (a selo) and the administrative center of Bolshemogoysky Selsoviet of Volodarsky District, Astrakhan Oblast, Russia. The population was 1,048 as of 2010.[2] There are 10 streets.
Bolshoy Mogoy is located on the Sarbay River, 19km (12miles) southeast of Volodarsky (the district's administrative centre) by road. Maly Mogoy is the nearest rural locality.[3]