Hobart Cavanaugh (September 22, 1886 – April 27, 1950) was an American character actor in films and on stage.
Born in Virginia City, Nevada, Cavanaugh made his film debut in San Francisco Nights (1928). Over the next few years he established himself as a supporting actor, and although many of his roles were small and received no film credit, he played more substantial roles in films such as I Cover the Waterfront (1933) and Mary Stevens, M.D. (1933). By the mid-1930s he was appearing in more prestigious films such as A Midsummer Night's Dream (1935), Captain Blood (1935) and Wife vs. Secretary (1936). He continued playing small, often comical roles until the end of his life. One of his last appearances was in A Letter to Three Wives (1949). By the end of his life he had appeared in more than 180 films.