Dene Suline (also Dëne Sųłiné, Dene Sųłiné, Chipewyan, Dene Suliné, Dëne Suliné, Dene Soun’liné or just Dene) is the language spoken by the Chipewyan people of central Canada. It is a part of the Athabaskan family and therefore related to the Navajo language. Dene Suline has over 11,000 speakers in Canada, mostly in Saskatchewan, Alberta and the Northwest Territories, but only has official status in the Northwest Territories alongside 8 other aboriginal languages: Cree, Dogrib, Gwichʼin, Inuktitut, Inuinnaqtun, Inuvialuktun, North Slavey and South Slavey.

Dogrib (also Tłįchǫ Yatiì) is a language spoken by the First Nations Tłįchǫ people of the Canadian territory Northwest Territories. According to Statistics Canada in 1999, there were approximately 2,085 people whose first language is Dogrib.
The Dogrib region covers the northern shore of Great Slave Lake, reaching almost up to Great Bear Lake. Rae-Edzo, now known by its Dogrib name, Behchokǫ, is the largest community in the Dogrib Region.

Slavey (also Slave) (pronounced: [slevi]) is an Athabaskan language spoken among the Slavey First Nations of Canada in the Northwest Territories where it is also has official status. In older literature, the name of the language was spelt Slave; however, the connotations of this, along with the pronunciation of the homograph slave (the final e should be pronounced) have caused the change to Slavey instead. The language is written using Canadian Aboriginal Syllabics or the Latin alphabet. Slavey was the native language spoken by the fictional band in the Canadian television series North of 60. Nick Sibbeston, a former Premier of the Northwest Territories, was a Slavey language and cultural consultant for the show.