Little Diomede Island (Inupiat: Iŋaliq, formerly known as Krusenstern Island is an island of Alaska, United States. It is the smaller of the two Diomede Islands located in the middle of the Bering Strait between the Alaska mainland and Siberia.

Little Diomede's neighboring island, Big Diomede, is less than 2.4 mi (3.9 km) to the west, but is part of Russia and west of the International Date Line. Unlike its larger Russian neighbor, Little Diomede retains a permanent native population. As of the 2010 census, Little Diomede had a population of 110, down from its recorded peak of 178 in 1990. The entirety of the island is in the City of Diomede (Inupiat: Iŋaliq meaning "the other one" or "the one over there"). The island is not part of any organized borough, so some services are provided directly by the state. For census purposes, it is included in the Nome Census Area.