| Chesu | |
| States: | China |
| Ethnicity: | Yi |
| Speakers: | 3,300 |
| Date: | 2007 |
| Ref: | e25 |
| Familycolor: | Sino-Tibetan |
| Fam2: | Tibeto-Burman |
| Fam3: | Lolo–Burmese |
| Fam4: | Loloish |
| Fam5: | Nisoish |
| Fam6: | Northern Loloish |
| Fam7: | Nasoid |
| Iso3: | ych |
| Glotto: | ches1238 |
| Glottorefname: | Chesu |
Chesu 车苏 is a Loloish language spoken in southern Shuangbai County, northern Xinping County, and Eshan County in Yunnan, China.
The Chesu refer to themselves as pronounced as /tsu su³³pa²¹/ or pronounced as /tɕi²¹su⁵⁵pho²¹/ (Jishupo 吉输颇).[1] Yunnan (1955) reports that Chesu is spoken mostly in Taihe Township 太和乡, with a population of over 360 as of 1955.[2] Ethnologue reports 3,300 Chesu speakers out of an ethnic population of 6,600 people, as of 2007.
Bradley (2007) reports that Chesu is closely related to Nasu and classifies it as a Nasoid language. Chesu speakers consider themselves to be a separate ethnic group from the surrounding Nisu speakers. The Chesu language is currently being replaced by Nisu and Chinese.[3]
In Eshan County, Chesu is also used as a second language by Hlersu speakers.