| En Name: | Kobyay |
| Ru Name: | Кобяй |
| Loc Name1: | Кэбээйи |
| Loc Lang1: | Yakut |
| Coordinates: | 63.5783°N 126.5306°W |
| Map Label Position: | right |
| Federal Subject: | Sakha Republic |
| Adm District Jur: | Kobyaysky District |
| Adm Selsoviet Jur: | Kobyaysky Rural Okrug |
| Adm Selsoviet Type: | Rural okrug |
| Adm Ctr Of: | Kobyaysky Rural Okrug |
| Inhabloc Cat: | Rural locality |
| Inhabloc Type: | Selo |
| Mun District Jur: | Kobyaysky Municipal District |
| Mun District Jur Ref: | [1] |
| Rural Settlement Jur: | Kobyaysky Rural Settlement |
| Mun Admctr Of: | Kobyaysky Rural Settlement |
| Pop 2002Census: | 2570 |
| Postal Codes: | 678310 |
Kobyay (Russian: Кобяй; Yakut: Кэбээйи|translit=Kebeeyi) is a rural locality (a selo) and the administrative center of Kobyaysky Rural Okrug of Kobyaysky District in the Sakha Republic, Russia, located 120km (80miles) from Sangar, the administrative center of the district.[2] and 260km (160miles) north west of Yakutsk, the capital of the Republic Its population as of the 2002 Census was 2,570.