The Alaska Peninsula is a peninsula extending about 497 mi (800 km) to the southwest from the mainland of Alaska and ending in the Aleutian Islands. The peninsula separates the Pacific Ocean from Bristol Bay, an arm of the Bering Sea.

Aleut or Unangam Tunuu is the language spoken by the Aleut living in the Aleutian Islands, Pribilof Islands, Commander Islands, and the Alaska Peninsula. Aleut is the sole language in the Aleut branch of the Eskimo–Aleut language family. The Aleut language consists of three dialects, including Unalaska, Atka/Atkan, and Attu/Attuan.