| En Name: | Oy |
| Ru Name: | Ой |
| Coordinates: | 61.5333°N 140°W |
| Map Label Position: | right |
| Federal Subject: | Sakha Republic |
| Adm District Jur: | Khangalassky District |
| Adm Selsoviet Jur: | Nemyuginsky Rural Okrug |
| Adm Selsoviet Type: | Rural okrug |
| Adm Ctr Of: | Nemyuginsky Rural Okrug |
| Inhabloc Cat: | Rural locality |
| Inhabloc Type: | Selo |
| Mun District Jur: | Khangalassky Municipal District |
| Mun District Jur Ref: | [1] |
| Rural Settlement Jur: | Nemyuginsky Rural Settlement |
| Mun Admctr Of: | Nemyuginsky Rural Settlement |
| Pop 2010Census: | 2266 |
| Postal Codes: | 678012 |
Oy (Russian: Ой; Yakut: Ой) is a rural locality (a selo), the only inhabited locality, and the administrative center of Nemyuginsky Rural Okrug of Khangalassky District in the Sakha Republic, Russia, located 7km (04miles) from Pokrovsk, the administrative center of the district.[2] Its population as of the 2010 Census was 2,266,[3] down from 2,305 recorded during the 2002 Census.[2]