- Language: Chiga
- Alternate names: Oluchiga, Orukiga, Ciga, Kiga, Rukiga
- Language code: cgg
- Language family: Niger-Congo, Atlantic-Congo, Volta-Congo, Benue-Congo, Bantoid, Southern, Narrow Bantu, Central, J, Nyoro-Ganda (J.10)
- Number of speakers: 1391442
- Script: Latin script
Chiga is spoken by the Bakiga ("people of the mountains"), an ethnic group located in what is now northwestern Rwanda and southern Uganda. They are sometimes referred to as the Kiga, while the singular form is mukiga. It has been suggested that the Bakiga arrived in Uganda from Rwanda between 1600 and 1700.