The Cheyenne are an Indigenous people originating from the Great Plains of the United States. They comprise two Native American tribes, the Só'taeo'o (also known as Só'taétaneo'o) and the Tsétsėhéstȧhese, which merged during the early 19th century.
The Cheyenne people are currently divided into two federally recognized nations. The Southern Cheyenne are enrolled in the Cheyenne and Arapaho Tribes located in Oklahoma, while the Northern Cheyenne are enrolled in the Northern Cheyenne Tribe on the Northern Cheyenne Indian Reservation in Montana. Their language is a member of the Algonquian language family.