Butbut Kalinga
Butmas-Tur
Butuanon
Buwal
Buyu
Buyuan Jinuo
Bwa
Bwaidoka
Bwanabwana
Bwatoo
Bwe Karen
Bwela
Bwile
Bwisi
Byangsi
Byep
Caac
Cabécar
Cabiyarí
Cacaloxtepec Mixtec
Cacaopera
Cacgia Roglai
Cacua
Caddo
Cafundo Creole
Cagua
Cahuarano
Cahuilla
Ca̱hungwa̱rya̱
Cajamarca Quechua
Cajatambo North Lima Quechua
Cajonos Zapotec
Cajun French
Caka
Cakchiquel-Quiché Mixed Language
Cakfem-Mushere
Calamian Tagbanwa
Calderón Highland Quichua
Callawalla
Caló
Caluyanun
Cameroon Mambila
Cameroon Pidgin
Camling
Campalagian
Campidanese Sardinian
Camsá
Camtho
Camunic
Cañar Highland Quichua
ISO 639-3 Reference Names