| En Name: | Kustur |
| Ru Name: | Кустур |
| Other Name: | Кустуур |
| Other Lang: | Sakha |
| Coordinates: | 68.1833°N 172°W |
| Map Label Position: | right |
| Federal Subject: | Sakha Republic |
| Adm District Jur: | Eveno-Bytantaysky National District |
| Adm Selsoviet Jur: | Nizhnebytantaysky Rural Okrug |
| Adm Selsoviet Type: | Rural okrug |
| Adm Ctr Of: | Nizhnebytantaysky Rural Okrug |
| Inhabloc Cat: | Rural locality |
| Inhabloc Type: | Selo |
| Mun District Jur: | Eveno-Bytantaysky Municipal District |
| Mun District Jur Ref: | [1] |
| Rural Settlement Jur: | Nizhnebytantaysky Rural Settlement |
| Mun Admctr Of: | Nizhnebytantaysky Rural Settlement |
| Pop 2010Census: | 766 |
| Postal Codes: | 678586 |
Kustur (Russian: Кустур; Yakut: Кустуур, Kustuur) is a rural locality (a selo) and the administrative center of Nizhnebytantaysky Rural Okrug in Eveno-Bytantaysky National District of the Sakha Republic, Russia, located 100km (100miles) from Batagay-Alyta, the administrative center of the district. Its population as of the 2010 Census was 766,[2] up from 754 recorded during the 2002 Census.[3]