Frank Middlemass (28 Mei 1919 – 8 September 2006) was 'n Engelse akteur. Hy was bekend vir sy rolle in die rolprente Barry Lyndon (1975) en The Island (1980), en in die televisiereekse Knights of God (1987) en As Time Goes By (1992).
- 1975: Barry Lyndon
- 1980: The Island
- 1983: A Swarm in May
- 1985: All in Good Faith
- 1986: T-Bag Strikes Again
- 1987: Knights of God
- 1992: As Time Goes By
- 1978: Me! I'm Afraid of Virginia Woolf
- 1986: Masterpiece Theatre: Fifteen Years
- 1993: A Haunting Harmony
- 1993: A Bright New Hope for Mankind
