Avatanak Island (Aleut: Agutanax̂;[1] Russian: Аватанак) is the second-largest (with a length of 10 mi) of the Krenitzin Islands, a subgroup of the Fox Islands in the eastern Aleutian Islands in the U.S. state of Alaska.
It lies southeast of Akun Island, across the Avatanak Strait.
Avatanak is an Aleut name transcribed by Russian explorers into various spellings and apparently identical with Aiaialgutak of Captain Lt. Krenitzin and Lt. Levashev (1768).
The name Avatanak was published by Father Veniaminov (1840) and Captain Tebenkov (1852), whereas Captain Lutke and the Russian Hydrographic Department (1847) used the spelling Avatanok.
This article about a location in the Aleutians East Borough, Alaska is a stub.