| En Name: | Bolshoy Nimnyr |
| Ru Name: | Большой Нимныр |
| Coordinates: | 58.05°N 154°W |
| Map Label Position: | top |
| Federal Subject: | Sakha Republic |
| Adm Data As Of: | June 2009 |
| Adm District Jur: | Aldansky District |
| Adm Selsoviet Jur: | Aldan |
| Adm Selsoviet Type: | Town |
| Inhabloc Cat: | Rural locality |
| Inhabloc Type: | Selo |
| Mun Data As Of: | April 2012 |
| Mun District Jur: | Aldansky Municipal District |
| Mun District Jur Ref: | [1] |
| Urban Settlement Jur: | Aldan Urban Settlement |
| Pop 2010Census: | 236 |
| Established Date: | 1929 |
| Current Cat Date: | June 16, 2005 |
| Postal Codes: | 678942 |
| Date: | August 2014 |
Bolshoy Nimnyr (Russian: Большой Нимныр; Yakut: Улахан Ньымныыр, Ulaxan Ñımnıır) is a rural locality (a selo) under the administrative jurisdiction of the Town of Aldan in Aldansky District of the Sakha Republic, Russia, located 75km (47miles) from Aldan.[2] Its population as of the 2010 Census was 236;[3] down from 479 recorded in the 2002 Census.
It is located on the north bank of the Bolshoy Nimnyr River, where the river is crossed by the highway to Yakutsk. The Amur–Yakutsk Mainline railway also crosses the river close by; the railway station is located about 2km (01miles) to the north.
It was founded in 1929 as a service point on the road being built toward Yakutsk. It was granted urban-type settlement status in 1973 but was demoted back to a rural locality on June 16, 2005.[4] The now abolished rural locality of Maly Nimnyr (lit. Lesser Nimnyr), abandoned in 1997 due to the high cost of supplies and infrastructure, is located nearby.[5]