King of the Grizzlies is a 1970 adventure film directed by Ron Kelly and written by Jack Speirs, Rod Peterson and Norman Wright as a loose adaptation of Ernest Thompson Seton's 1900 novel Biography Of A Grizzly. The film stars John Yesno, Chris Wiggins, Hugh Webster and Jack Van Evera. The film was released on February 11, 1970, by Buena Vista Distribution.