Kuo () is an Mbum language of northern Cameroon and southern Chad.
Kuo, like Kali, is spoken in scattered areas of the eastern part of Vina department (Mbe and eastern Ngaoundéré communes) and in Mbere department (Meiganga commune) in the Adamawa Region. In the Eastern Region, it is spoken in the northern part of Lom-et-Djerem department (Garoua-Boulaï and Bétaré-Oya communes). It is spoken by 2,975 people.
The tilde (vowel nasalization mark) is written below the vowel letter (að, ÃÂð, á¸Â, ÃÂð, á¹µ). Kuo has 4 tones, written using tone accent (except for mid tone is unwritten): grave (`) for low tone, acute (ô) for high tone, and caron (ÃÂ) for rising tone.