Kayabí (Caiabi; also Kawaiwete) is a Tupian language spoken by the Kayabí people of Mato Grosso, Brazil.
Although the Kayabi call themselves Kagwahiva, their language is not part of the Kagwahiva language.
It is spoken in the Xingu Indigenous Park and Apiaká-Kayabi Indigenous Territory.
/f/ can also be heard as a bilabial fricative [ɸ].
This Tupian languages–related article is a stub.