Adrian Malcolm Conan Doyle (19 November 1910 – 3 June 1970) was a British literary editor. He was the youngest son of Sir Arthur Conan Doyle, creator of Sherlock Holmes. Adrian was his father's literary executor from 1940 to 1970.
Adrian has been depicted as a racing car driver, big-game hunter, explorer, and writer. Biographer Andrew Lycett calls him a "spendthrift playboy" who (with his brother Denis) "used the Conan Doyle estate as a milch-cow".