阿福格纳克岛是美国的岛屿，属于科迪亚克群岛的一部分，由阿拉斯加州负责管辖，长69公里、宽37公里，面积1,812平方公里，是该国第十八大岛屿，2000年人口169。

Afognak (Alutiiq: Agw’aneq) is an island 5 km (3.1 mi) north of Kodiak Island in the U.S. state of Alaska. It is 43 miles from east to west and 23 miles from north to south and has a land area of 1,812.58 km (699.84 sq mi), making it the 18th largest island in the United States. The coast is split by many long, narrow bays. The highest point is 2,546 feet.