The Cave Girl is a 1921 American silent drama film directed by Joseph J. Franz and featuring Teddie Gerard, Charles Meredith, Lillian Tucker and Boris Karloff in an early film role. The source for the William Parker screenplay was the stage play of the same name by George Middleton and Guy Bolton. The film's tagline was "A Romance of Silent Trails and Rushing Waters... A Drama of Youth Gone Wild... Enacted in the Yosemite Valley in the Middle of Winter." (Print Ad in the Ludington Daily News, ((Ludington, Mich.)) 18 May 1923). The film is presumed lost.

Plot

Professor Sperry moves to a cave in the wilderness to live the primitive life, taking his daughter Margot with him.