|Native speakers||10,500 together with Mediak (2000)|
Mosiro is a Nilo-Saharan language spoken in the Arusha Region of Tanzania. It is the primary language of the hunter-gatherer Mosiro, who have limited comprehension of other languages. It is considered a variety of Ogiek by Rottland (1982) and Sommer (1992), but is assimilated to Nandi. The Mosiro are also called derogatory Dorobo (Ndorobo).