- Language: Koyo
- Alternate names: Ekoyo, Kouyou
- Language code: koh
- Language family: Niger-Congo, Atlantic-Congo, Volta-Congo, Benue-Congo, Bantoid, Southern, Narrow Bantu, Northwest, C, Mbosi (C.30)
- Number of speakers: 1000
- Script: Latin script
Location of Cuvette region in Congo.
Koyo is a language of the Bantu language family spoken in Cuvette Region, Owando District, around Owando, in Congo.