| En Name: | Yekyundyu |
| Ru Name: | Екюндю |
| Other Name: | Өкүндү |
| Other Lang: | Sakha |
| Coordinates: | 63.7833°N 132°W |
| Map Label Position: | right |
| Federal Subject: | Sakha Republic |
| Adm District Jur: | Vilyuysky District |
| Adm Selsoviet Jur: | Yekyundinsky Rural Okrug |
| Adm Selsoviet Type: | Rural okrug |
| Adm Ctr Of: | Yekyundinsky Rural Okrug |
| Inhabloc Cat: | Rural locality |
| Inhabloc Type: | Selo |
| Mun District Jur: | Vilyuysky Municipal District |
| Mun District Jur Ref: | [1] |
| Rural Settlement Jur: | Yekyundinsky Rural Settlement |
| Mun Admctr Of: | Yekyundinsky Rural Settlement |
| Pop 2010Census: | 321 |
| Postal Codes: | 678226 |
Yekyundyu (ru|Екюндю; sah|Өкүндү, Ökündü) is a rural locality (a selo), the only inhabited locality, and the administrative center of Yekyundinsky Rural Okrug of Vilyuysky District in the Sakha Republic, Russia, located 28km (17miles) from Vilyuysk, the administrative center of the district.[2] Its population as of the 2010 Census was 321,[3] down from 326 as recorded during the 2002 Census.