American Samoa (ⁱ/əˈmɛrᵻkən səˈmoʊ.ə/; Samoan: Amerika Sāmoa, [aˈmɛɾika ˈsaːmʊa]; also Amelika Sāmoa or Sāmoa Amelika) is an unincorporated territory of the United States located in the South Pacific Ocean, southeast of Samoa.

American Samoa consists of five main islands and two coral atolls. The largest and most populous island is Tutuila, with the Manuʻa Islands, Rose Atoll, and Swains Island also included in the territory. American Samoa is part of the Samoan Islands chain, located west of the Cook Islands, north of Tonga, and some 300 miles (500 km) south of Tokelau. To the west are the islands of the Wallis and Futuna group.

The 2010 census showed a total population of 55,519 people. The total land area is 199 square kilometers (76.8 sq mi), slightly more than Washington, D.C. American Samoa is the southernmost territory of the U.S. and one of two U.S. territories (with the uninhabited Jarvis Island) south of the Equator. Tuna products are the main exports, and the main trading partner is the United States.