Annette Island, or Taak'w Aan, is an island in Gravina Islands of the Alexander Archipelago of the Pacific Ocean on the southeastern coast of the U.S. state of Alaska. It is at (55°08′06″N131°27′21″W). It is about 18 km (11 mi) long and about 18 km (11 mi) wide. The land area is 332.573 km² (128.407 sq mi). Annette Island is located across the Revillagigedo Channel from the Alaska mainland on the east and across from Revillagigedo Island on the north.