The Teslin Tlingit Council (TTC) is a First Nation band government in the central Yukon in Canada, located in Teslin, Yukon[1] along the Alaska Highway and Teslin Lake. The language originally spoken by the Teslin Tlingit or Deisleen Ḵwáan (″Big Sinew Tribe″) is Tlingit. Together with the Taku River Tlingit or Áa Tlein Ḵwáan (″Big Lake Tribe″) around Atlin Lake of the Taku River Tlingit First Nation in British Columbia, and carcross tagish first nation or natasaaheeni, they comprise the Inland Tlingit.
The Teslin Tlingit Council was one of the first four Yukon First Nations to sign a land claims agreement in 1992.