Tai Thanh language
Tai Thanh, or Tai Then, is a Southwestern Tai language of Nghe An Province and Thanh [Hoa Province], north-central Vietnam.
Tayten is spoken in the 2 villages of Ban Phia and Ban Tenngiou in Pakxeng District, Luang [Prabang Province], Laos. It is either Tai Then or Thin.