| Bolshoy Begichev | |
| Native Name: | Большой Бегичев |
| Native Name Link: | Russian language |
| Native Name Lang: | Russian |
| Nickname: | --> |
| Image Map Caption: | Location of Maliy Begichev and Bolshoy Begichev islands in the Khatanga Gulf |
| Pushpin Map: | Russia Sakha Republic#Russia |
| Etymology: | Named for Nikifor Begichev |
| Location: | Laptev Sea |
| Area Km2: | 1764 |
| Length M: | --> |
| Width M: | --> |
| Coastline M: | --> |
| Country: | Russia |
| Country Admin Divisions Title: | Republic |
| Country Admin Divisions: | Sakha |
| Country Area M2: | or |
| Country Area Ha: | --> |
| Country1 Area M2: | or |
| Country1 Area Ha: | --> |
| Population: | 0 |
Bolshoy Begichev (Russian: Большой Бегичев|translation= Big Begichev) is an island in the Laptev Sea, in the Sakha Republic, Russia.
The area of the island is . Bolshoy Begichev is located within the Khatanga Gulf (Russian: Хатангский залив), splitting the gulf into two straits.
Only west of Bolshoy Begichev lies the much smaller island known as Maliy Begichev Island. Its size is only . The border between administrative divisions of the Russian Federation runs between the two Begichev islands, so that while Maliy Begichev is in Krasnoyarsk Krai, Bolshoy Begichev is in the Sakha republic.Both Bolshoy Begichev and Maliy Begichev are named after Russian polar explorer Nikifor Begichev.
North of Bolshoy Begichev lies small Preobrazheniya Island. This elongated granitic island was useful as a landmark for ships plying the Northern Sea Route in the past.[1]
A NAVTEX Coast Station used to be situated on the island at 74.5333°N 114°W.[2] However, according to the NAVTEX list the station was no longer listed.[3]
There are muskoxen on the island.