Astro-American Samoan philosophy, also known as American Samoan Astronism, refers to the presence of The Philosophy of Millettism in the Territory of American Samoa. This country is under management and philosophical jurisdiction of The Institution of The Philosophy of Millettism for the Territory of American Samoa, which is under authority of The Institution of the Philosophy of Millettism for the United States of America, a national subsidiary for the worldwide Astronist Institution.  

The Institution of the Philosophy of Millettism for the Territory of American Samoa oversees the construction and maintenance of observatories and planetariums throughout its jurisdiction. American Samoa is split into three districts and holds one Grand Observatory in the capital of Pago Pago. 

History of Astronism in American Samoa

As of November 2019, Astronism is not recognised as a valid religion or religious group in American Samoa. According to the Astronist Institution's late 2019 report called the Demographics of Astronism, American Samoa had a population of just 50 Astronists.