The flag of American Samoa is a flag consisting of a red-edged white triangle pointing towards the hoist charged with a bald eagle clutching a war club and fly-whisk, with dark blue upper and lower triangles. Adopted in April 1960 to replace the "Stars and Stripes" as the official flag of the territory, it has been the flag of the Territory of American Samoa since that year. The colors used epitomize the traditional colors of the United States and Samoa.

Tutuila is the largest and most populous island of American Samoa and is part of the archipelago of the Samoan Islands. It is the third largest island in the Samoan Islands chain of the Central Pacific. It is located roughly 4,000 kilometers (2,500 mi) northeast of Brisbane, Australia and lies over 1,200 kilometers (750 mi) to the northeast of Fiji. It contains a large, natural harbor, Pago Pago Harbor, where Pago Pago, the capital of American Samoa, is situated. Pago Pago International Airport is also located on Tutuila. The island's land expanse is about 68% of the total land area of American Samoa. With 56,000 inhabitants, it is also home to 95% of the population of American Samoa. The island has six terrestrial and three marine ecosystems.