Nyisu or Yellow Yi 黄彝 is a moribund Loloish language of Kunming, central Yunnan, China. There are fewer than 300 speakers remaining according to Bradley (2005, 2007). Nyisu speakers are also referred to as Doupo 都泼.
The Yellow Yi had originally migrated from Sichuan, and live in 4 villages in northwestern Fumin County (endangered) and one village in northwestern Anning, Yunnan (moribund, highly endangered). It is most closely related to Suondi Yi according to Bradley (2005). Nyisu (ȵi˥su˧ pho˨˩) was also documented by Lama (2012) in Luomian Township 罗免乡, Fumin County.
Pelkey (2011) tentatively classifies Nyisu of Shilin County as belonging to the Nisu language cluster. Nyisu (ȵi˥su˧ pʰu˥) of Gaohanshan Village, Zhuqing Township, Shilin County is documented in Wu Zili (1997) and YNYF (1984). It is not known whether Nyisu of Shilin and Nyisu of Kunming are closely related.
- Bradley, David. 2005. "Sanie and language loss in China".International Journal of the Sociology of Language. Volume 2005, Issue 173, Pp. 159–176.
- Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2017). "Nyisu". Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.
- "Archived copy". Archived from the original on 2013-08-01. Retrieved 2013-07-19.CS1 maint: Archived copy as title (link)
- Bradley, David. 2007. East and Southeast Asia. In Moseley, Christopher (ed.), Encyclopedia of the World's Endangered Languages, 349-424. London & New York: Routledge.
- Lama, Ziwo Qiu-Fuyuan. 2012. Subgrouping of Nisoic (Yi) Languages. Ph.D. thesis, University of Texas at Arlington.
- Pelkey, Jamin. 2011. Dialectology as Dialectic: Interpreting Phula Variation. Berlin: De Gruyter Mouton.
- Wu Zili [武自立]. 1997. "Nisu Yiyu Saibian Yin Zai Fangyan he Qinshu Yuyan Zhong de Duiying [尼苏彝语塞边音在方言和亲属语言中的对应] (A comparative account of lateral stops in Nisu Yi and other closely related language varieties)." Minzu Yuwen 1997 (3): 16–22.
- YNYF, Editorial Committee (eds.) 1984. Yunnan Yiyu Fangyan Ciyu Huibian [云南彝语方言词语汇编] (A lexical compendium of Yi dialects). Kunming: Yunnan Minzu Xueyuan [云南民族学院].