thumb|Khvostof Island (left) and [[Pyramid Island (Alaska)|Pyramid Island (right)]]
thumb|260px|right|Map of the West-Aleuts - (10) Khvostof
Khvostof Island or Atanak (; ) is an island in the Rat Islands archipelago of the Western Aleutian Islands, Alaska. The island is long and wide.
References
es:Isla Khvostof#top