Warren Island is an island in the Alexander Archipelago of southeastern Alaska, United States.

It lies on the Pacific coast just southwest of the community of Edna Bay (on Kosciusko Island).

Warren Island has a land area of 47.191 km2 (18.22 sq mi) and no permanent resident population.

[2] The entire island has been designated as the Warren Island Wilderness, a part of Tongass National Forest.

This article about a location in the Prince of Wales–Hyder Census Area, Alaska is a stub.