The Ning'er Hani and Yi Autonomous County (simplified Chinese: 宁洱哈尼族彝族自治县; traditional Chinese: 寧洱哈尼族彝族自治縣; pinyin: Níng'ěr Hānízú Yízú Zìzhìxiàn) is an autonomous county under the jurisdiction of Pu'er Prefecture, Yunnan Province, China.
The population of the county has a large proportion of native Hani and Yi people in a predominately Han Chinese population. As of 2003 the county records a population of approximately 190,000 people.
Ethnic Bai (population: 5,139) are found in Kesa 克洒, Heping village 和平村, Mengxian township 勐先乡 (Pu'er County Almanac 1993:120).
The Datou 达头 people number 254 persons and are found in Ning'er County and Simao City. They consider themselves to be ethnic Yi, and also speak a Yi language (You 2013:133).
This county gives its name to Pu-erh tea, due to its historical role in the tea trade in Ancient China.
Coordinates: 23°05′N 101°03′E / 23.083°N 101.050°E