| En Name: | Bykovsky |
| Ru Name: | Быковский |
| Loc Name1: | Быковскай |
| Loc Lang1: | Yakut |
| Coordinates: | 72.0167°N 135°W |
| Map Label Position: | right |
| Federal Subject: | Sakha Republic |
| Adm District Jur: | Bulunsky District |
| Adm Selsoviet Jur: | Bykovsky Rural Okrug |
| Adm Selsoviet Type: | Rural okrug |
| Adm Ctr Of: | Bykovsky Rural Okrug |
| Inhabloc Cat: | Rural locality |
| Inhabloc Type: | Selo |
| Mun District Jur: | Bulunsky Municipal District |
| Mun District Jur Ref: | [1] |
| Rural Settlement Jur: | Bykovsky Rural Settlement |
| Mun Admctr Of: | Bykovsky Rural Settlement |
| Pop 2010Census: | 517 |
| Pop Latest: | 514 |
| Pop Latest Date: | January 2016 |
| Pop Latest Ref: | [2] [3] |
| Postal Codes: | 678412 |
Bykovsky (Russian: Быковский; Yakut: Быковскай|translit=Bıkovskay) is a rural locality (a selo), the only inhabited locality, and the administrative center of Bykovsky Rural Okrug of Bulunsky District in the Sakha Republic, Russia, located 80km (50miles) from Tiksi, the administrative center of the district.[4] Its population as of the 2010 Census was 517,[5] up from 363 recorded during the 2002 Census.
People from around Bykovskiy were among those who helped save some of the USS Jeannette survivors.[6]