Kayan language (Borneo)
| Kayan | |
|---|---|
| Kajan | |
| Native to | Indonesia, Malaysia | 
| Region | Borneo | 
| Ethnicity | Kayans | 
| Native speakers | (35,000 cited 1981–2007) | 
| Language codes | |
| ISO 639-3 | Variously: xay– Kayan Mahakamkys– Baram Kayanbfg– Busang Kayanxkn– Kayan River Kayanxkd– Mendalam Kayanree– Rejang Kayanwhu– Wahau Kayanbhv– Bahau | 
| Glottolog | kaya1333Kayanic | 
Kayan (Kajan, Kayan proper) is a dialect cluster spoken by the Kayan people of Borneo. It is a cluster of closely related dialects with limited mutual intelligibility, and is itself part of the Kayan-Murik group of Austronesian languages.
Baram Kayan is a local trade language. Bahau is part of the dialect cluster, but is not ethnically Kayan.