Morning Star was a great chief of the Northern Cheyenne people and headchief of the Notameohmésêhese band on the northern Great Plains during the 19th century. He was noted for his active resistance to westward expansion and the United States federal government. It is due to the courage and determination of Morning Star and other leaders that the Northern Cheyenne still possess a homeland in their traditional country in present-day Montana.

The Cheyenne are an Indigenous people of the Great Plains. Their Cheyenne language belongs to the Algonquian language family. Today, the Cheyenne people are split into two federally recognized nations: the Southern Cheyenne, who are enrolled in the Cheyenne and Arapaho Tribes in Oklahoma, and the Northern Cheyenne, who are enrolled in the Northern Cheyenne Tribe of the Northern Cheyenne Indian Reservation in Montana.