William Stowell (March 13, 1885 – November 24, 1919) was an American silent film actor. A handsome actor with matinee idol good looks, Stowell was signed into film in 1909 with IMP (forerunner of Universal Studios), and debuted by starring in the popular hit The Cowboy Millionaire (1909), also starring Tom Mix. Between 1909 and 1919 Stowell starred in 119 silent films, often playing in over 10 films a year. In 1918 he co-starred with Dorothy Phillips and Erich Von Stroheim in The Heart of Humanity.