Derek Blomfield (31 Augustus 1920 – 23 Julie 1964) was 'n Engelse akteur en skrywer. Hy was bekend vir sy rolle in die rolprente Hobson's Choice (1954) en The Ship Was Loaded (1957), en in die televisiereeks Rupert of Hentzau (1964).
- 1936: Shipmates o' Mine
- 1940: After Mein Kampf?: The Story of Adolph Hitler
- 1954: Hobson's Choice
- 1957: The Ship Was Loaded
- 1952: Eight to a Bar
- 1955: Terminus
- 1956: Vanity Fair
- 1964: Rupert of Hentzau
- 1946: Candida
- 1948: A Woman of No Importance
- 1948: An Inspector Calls
- 1949: The Ghost of Monsieur Tronjolly
- 1949: The Guinea Pig
- 1949: The Winslow Boy
- 1949: The Anatomist
- 1949: Shooting Star
- 1949: Old English
- 1949: The Silver Box
- 1951: Just William
- 1951: And No Birds Sing
- 1953: The Parasite
