Olivia Hamnett (23 November 1927 – November 2001) was 'n Engelse aktrise. Sy was bekend vir haar rolle in die rolprent The Last Wave (1977) en in die televisiereekse Department S (1969) en Prisoner (1979).
- 1977: The Last Wave
- 1980: The Earthling
- 1999: Joe Wilkinson
- 1969: Department S
- 1973: Son of the Bride
- 1974: Rush
- 1975: Quality of Mercy
- 1977: Bobby Dazzler
- 1979: Prisoner
- 1989: The Power, the Passion
- 1974: This Love Affair
- 1978: Ripkin
- 1979: The John Sullivan Story
- 1980: Plunge Into Darkness
- 1984: The Young Wife
- 1987: Coda
