Native Americans, also known as American Indians, Indians, natives, and other terms, are indigenous peoples of the United States. Within the United States, there are more than 500 federally recognized tribes, about half of which are related to Indian reservations. The term does not include Hawaiian aborigines and certain Alaskan aborigines.

The ancestors of Modern Native Americans arrived in the United States at least 15000 years ago (probably earlier) from Asia through beringsia. Subsequently, various nationalities, societies and cultures developed. Native Americans were greatly influenced by the European colonial rule which began in 1492. Because of the introduction of disease, war and slavery, their population declined sharply. After the founding of the United States, many Native Americans suffered from wars, dismissals and unilateral treaties, and today they continue to suffer from discriminatory government policies. Since the 1960s, the self-determination movement of American Indians has led to many changes in their lives, although they still face many contemporary problems. Today, there are more than five million native Americans in the United States.