Atu'u is a village on Tutuila Island, American Samoa. It is located on the coast of Pago Pago Harbor, close to the capital, Pago Pago.

Atu'u is the location of two tuna canneries, the main employers in American Samoa.

Traditional leaders in Atu’u imposed a nightly curfew in 2002 to combat social problems due to the number of nightclubs.[1]