Morning Star (Cheyenne: Vóóhéhéve; also known by his Lakota Sioux name Tȟamílapȟéšni or its translation, Dull Knife)(1810–1883) is a great chief of the Northern Cheyenne people and headchief of the Notameohmésêhese ("Northern Eaters"; also simply known as Ȯhmésėhese or "Eaters") band on the northern Great Plains during thenineteenh century.
He is 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.
Although he is known as "Dull Knife" (or Motšêške Ôhnêxahpo in Cheyenne, a translation of his Lakota name) to local settlers, U.S. military leaders, and other American Indians, his Cheyenne name is translated as "Morning Star".