Native Americans, sometimes called American Indians, First Americans, or Indigenous Americans, are the Indigenous peoples of the United States or portions thereof, such as American Indians from the contiguous United States and Alaska Natives. The United States Census Bureau defines Native American as "all people indigenous to the United States and its territories, including Native Hawaiian and Other Pacific Islanders, whose data are published separately from American Indians and Alaska Natives". The U.S. census tracks data from American Indians and Alaska Native separately from Native Hawaiian and other Pacific Islanders, who include Samoan Americans and Chamorros. This demographic generally does not include Mesoamerican Indigenous peoples like the Maya.