Derrick De Marney (* 21. September 1906 in London; † 18. Februar 1978 ebenda) war ein britischer Schauspieler und Filmproduzent. ()
Derrick De Marney was an English stage, screen, and television actor, as well as a producer. He is probably best known for his starring role as a man wrongly accused of murder in the 1937 Alfred Hitchcock film Young and Innocent.