Samoan Americans are Americans of Samoan origin, including those who emigrated from the United States Territory of American Samoa and immigrants from the Independent State of Samoa to the United States. Samoan Americans are Pacific Islanders in the United States Census, and are the second largest Pacific Islander group in the U.S., after Native Hawaiians.

American Samoa has been an unincorporated territory of the United States since 1900, and Samoa, formally known as the Independent State of Samoa and known as Western Samoa until 1997, is an independent nation that gained its independence from New Zealand in 1962. American Samoa(which is under the jurisdiction of the United States of America) and Samoa together make up the Samoan Islands, an archipelago that covers 1,170 sq mi (3,030 km2). Like Native Hawaiians, the Samoans arrived on the mainland US in the 19th century serving in the US armed forces, fishermen and later worked as agricultural laborers and factory workers.

As per 2021 U.S. Census estimates, there are over 240,000 people of Samoan descent living in the United States, including those of partial ancestry, which is roughly over the population of the Independent State of Samoa, as of 2021. Honolulu, Hawaii, has the largest Samoan population of over 12,000 making up over 2% of the city's population. There are large Samoan communities in Greater Los Angeles, Orange County, California, San Francisco Bay Area, and Greater San Diego counties in the state of California. Other states with cities and towns with significant communities are Alaska, Arizona, Missouri, Oregon, Nevada, Texas, Utah, and Washington.