Tai Dam people

The Tai Dam, Tai Dum or Black Tai (Thai : ไทดำ) are an ethnic group of Vietnam (Thái Đen), Laos, China, and Thailand.

Tai Dam speakers in China are classified as part of the Dai nationality along with almost all the other Tai peoples. But in Vietnam they are given their own nationality (with the White Tai) where they are classified (confusingly for English speakers) as the Thái nationality (Tai people).