Eskimo () is a controversial exonym that refers to two closely related Indigenous peoples: Inuit (including the Alaska Native Iñupiat, the Canadian Inuit, and the Greenlandic Inuit) and the Yupik (or Yuit) of eastern Siberia and Alaska. A related third group, Aleuts, who inhabit the Aleutian Islands, are generally excluded from the definition of Eskimo. The three groups share a relatively recent common ancestor, and speak related languages belonging to the family of Eskaleut languages. These circumpolar peoples have traditionally inhabited the Arctic and subarctic regions from eastern Siberia (Russia) to Alaska (United States), Northern Canada, Nunavik, Nunatsiavut, and Greenland.
Some Inuit, Yupik, Aleut, and other individuals consider the term Eskimo, which is of a disputed etymology, to be pejorative or even offensive. Eskimo continues to be used within a historical, linguistic, archaeological, and cultural context. The governments in Canada and the United States have made moves to cease using the term Eskimo in official documents, but it has not been eliminated, as the word is in some places written into tribal, and therefore national, legal terminology. Canada officially uses the term Inuit to describe the indigenous Canadian people who are living in the country's northern sectors and who are not First Nations or Métis. The United States government legally uses Alaska Native for enrolled Yupik and Inuit tribal members, and also for non-Eskimos including Aleut, Tlingit, Haida, Eyak, and Tsimshian, in addition to at least nine northern Athabaskan/Dene peoples. Other non-enrolled individuals also claim Eskimo/Aleut descent, making it the world's "most widespread aboriginal group".
