Thopho, or Black Phula, is an endangered Loloish language spoken by the Phula people of Yunnan, China. There are 200 speakers out of an ethnic population of 500 speakers. It is spoken in the following two villages in eastern Guangnan County, Yunnan.
- Thopho at Ethnologue (18th ed., 2015)
- Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2017). "Thopho". Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.