Kennewick Man is the name for the remains of a prehistoric man found on a bank of the Columbia River near Kennewick, Washington, on July 28, 1996. The discovery of Kennewick Man was accidental; a pair of spectators at the yearly hydroplane races found his skull while swimming in the Columbia River.

It has a very high religious and historical value, and four Native American groups (Nez Perce, Umatilla, Yakama and Colville) claimed it to be buried by traditional means. Only Umatillas continued further court proceeding but gave up in for the final Supreme Court. The remains will therefore be preserved.