Douglas E. Turner (July 17, 1931 — May 5, 2025) was an English re-recording mixer, known for a variety of films, including five films directed by John Boorman—Deliverance (1972), Zardoz (1974), Excalibur (1981), The Emerald Forest (1985), and The General (1998)—A Day in the Death of Joe Egg (1972), Running Scared (1972), Savage Messiah (1972), Theater of Blood (1973), The Adventure of Sherlock Holmes’ Smarter Brother (1975), All Quiet on the Western Front (1979), The Europeans (1979), Angel (1982), The Keep (1983), The Fourth War (1990), Lionheart (1990), and Otello (1986).