Winterhawk is a 1975 American Western film co-written, produced and directed by Charles B. Pierce. Starring Leif Erickson, Woody Strode, Denver Pyle, L.Q. Jones, Michael Dante and Elisha Cook Jr., the story concerns a Blackfoot chief who attempts to get help for his tribe who have been infected by smallpox. He is betrayed by the people from whom he seeks help.

Charles Bryant Pierce was an American film director, screenwriter, producer, set decorator, cinematographer, and actor. Pierce directed thirteen films over the span of 26 years, but is best known for his cult hits The Legend of Boggy Creek (1973) and The Town That Dreaded Sundown (1976).