Na-Dene (/ˌnɑːdɪˈneɪ/; also Nadene, Na-Dené, Athabaskan–Eyak–Tlingit, Tlina–Dene) is a family of Native American languages that includes at least the Athabaskan languages, Eyak, and Tlingit languages. Haida was formerly included, but is now considered doubtful. By far the most widely spoken Na-Dene language today is Navajo.