Leonard Penn (13 November 1907 – 20 Mei 1975) was 'n Amerikaanse akteur. Hy was bekend vir sy rolle in die rolprente Marie Antoinette (1938), Hoppy's Holiday (1947), The Adventures of Sir Galahad (1949), en Mysterious Island (1951).
- 1937: Between Two Women
- 1938: Marie Antoinette
- 1947: Hoppy's Holiday
- 1949: The Adventures of Sir Galahad
- 1949: Range Land
- 1949: The Pilgrimage Play
- 1950: Silver Raiders
- 1950: Six Gun Mesa
- 1951: Mysterious Island
- 1951: Law of the Badlands
- 1952: Barbed Wire
- 1952: King of the Congo
- 1954: Beyond the Moon
- 1956: Menace from Outer Space
