| En Name: | Kudu-Byas |
| Ru Name: | Куду-Бясь |
| Coordinates: | 60.2333°N 158°W |
| Map Label Position: | right |
| Federal Subject: | Sakha Republic |
| Adm District Jur: | Olyokminsky District |
| Adm Selsoviet Jur: | Neryuktyayinsky 1-y Rural Okrug |
| Adm Selsoviet Type: | Rural okrug |
| Inhabloc Cat: | Rural locality |
| Inhabloc Type: | Selo |
| Mun District Jur: | Olyokminsky Municipal District |
| Mun District Jur Ref: | [1] |
| Rural Settlement Jur: | Neryuktyayinsky 1-y Rural Settlement |
| Pop 2010Census: | 2 |
Kudu-Byas (Russian: Куду-Бясь; Yakut: Куду Бэс, Kudu Bes) is a rural locality (a selo) in Neryuktyayinsky 1-y Rural Okrug of Olyokminsky District in the Sakha Republic, Russia, located 44km (27miles) from Olyokminsk, the administrative center of the district, and 6km (04miles) from Neryuktyayinsk 1-y, the administrative center of the rural okrug.[2] Its population as of the 2010 Census was 2,[3] down from 5 recorded during the 2002 Census.