Deer Island is an island located at the mouth of Cold Bay on the south side of the Alaska Peninsula in the state of Alaska, USA. It lies about five miles directly south of the mainland city of King Cove, across Deer Passage. The Sanak Islands lie to its south, and the Pavlof Islands to its northeast. The island has a land area of 151.7 km² (58.57 sq mi) and is uninhabited. It is a hilly island with many creeks running through it. Deer Island doesn't have much of a history. It was named by Aleuts, which were the only people to ever set foot on it.