Duoni () is a Southern Loloish language of Yunnan, China. Duoni is spoken in Jinping Miao, Yao, and Dai Autonomous County and Yuanyang County, Yunnan.
In Yuanyang County, the Duoni people are found in the townships of Niujiaozhai çÂÂè§Â寨 and Zha'e æÂÂä¿Â. In Jinping County, Duoni are located in Laojizhai Township èÂÂéÂÂ寨乡 (in the village clusters è¡Âæ¿æ of Masasi 马æÂÂæ¯, Bailezhai ç½ä¹Â寨, and Dazhupeng 大竹æ£Â), comprising 793 households and 3,329 persons as of 2005.