Angoon is a city on Admiralty Island in Hoonah-Angoon Census Area, Alaska, United States. At the 2000 census the population was 572; by the 2010 census the population had declined to 459. The name in Tlingit, Aangóon, means roughly "isthmus town."

Admiralty Island is an island in the Alexander Archipelago in Southeast Alaska, at 57°44′N 134°20′W. It is 145 km (90 mi) long and 56 km (35 mi) wide with an area of 4,264.1 km2 (1,646.4 sq mi), making it the seventh-largest island in the United States and the 132nd largest island in the world. It is one of the ABC islands in Alaska. The island is nearly cut in two by the Seymour Canal; to its east is the long, narrow Glass Peninsula. Most of Admiralty Island—955,747 acres (3,868 km2)—is protected as the Admiralty Island National Monument administered by the Tongass National Forest. The Kootznoowoo Wilderness encompasses vast stands of old-growth temperate rainforest. These forests provide some of the best habitat available to species such as brown bears, bald eagles, and Sitka black-tailed deer.