The Tai Dam or Black Tai are an ethnic group found in parts of Laos, Vietnam, 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 as the Thai nationality (meaning Tai people). The Tai Dam originate from the vicinity of Dien Bien Phu in Vietnam.