Are all Wa people surnamed Yan? Today, I met my Wa compatriots for the first time. He said that the Wa people in Pu 'er, Yunnan have strict surnames. Is that so?

Pure nonsense. If the Wa people take the surname of the Han nationality, there is more than one surname, and one of my classmates is Xiao. But there is a characteristic that most people in a place have the same surname. If the Wa people pronounce their real names as men's names, it will be even more changed. Strictly speaking, the Wa nationality has no surname of Han nationality.

..... The following content is quoted from online information. ...

In the social life of Wa people, a family has its own surname. There are surnames such as Guangde, Guangmu, Guangna and Li Guangbi in the county, but they are not widely used. Influenced by the Han nationality and other nationalities, the surnames of the Wa nationality in this county are Chen, Wei and Zhao, and most of them are single names, with "Yan" in front of men's names and "Ye" in front of women's names to show the difference. Men choose Yan (the eldest), Xian (the second), Su (the third), Xue (the fourth), Er (the fifth), Luo (the sixth) and Zhe (the seventh) according to their seniority. Women like to call it Nan, Nv, Nuo and E. After 1950s, Wa people intermarried with other nationalities and their surnames became diversified.