The Eskaleut (), Eskimo–Aleut or Inuit–Yupik–Unangan languages are a language family native to the northern portions of the North American continent and a small part of northeastern Asia. Languages in the family are indigenous to parts of what are now the United States (Alaska); Canada (Inuit Nunangat) including Nunavut, Northwest Territories (principally in the Inuvialuit Settlement Region), northern Quebec (Nunavik), and northern Labrador (Nunatsiavut); Greenland; and the Russian Far East (Chukchi Peninsula). The language family is also known as Eskaleutian, Eskaleutic or Inuit–Yupik–Unangan.

The Eskaleut language family is divided into two branches: the Eskimoan languages and the Aleut language. The Aleut branch consists of a single language, Aleut, spoken in the Aleutian Islands and the Pribilof Islands. Aleut is divided into several dialects. The Eskimoan languages are divided into two branches: the Yupik languages, spoken in western and southwestern Alaska and in Chukotka, and the Inuit languages, spoken in northern Alaska, Canada and Greenland. Inuit languages, which cover a huge range of territory, are divided into several varieties. Neighbouring varieties are quite similar, although those at the farthest distances from the centre in the Diomede Islands and East Greenland are quite divergent.

The proper place of one language, Sirenik, within the Eskimoan family has not been settled. While some linguists list it as a branch of Yupik, others list it as a separate branch of the Eskimoan family, alongside the Yupik and Inuit languages.