Alistair Stuart MacLean (Scottish Gaelic: Alasdair MacGill-Eain; 21 April 1922 – 2 February 1987) was a 20th-century Scottish novelist who wrote popular thrillers and adventure stories. His works include The Guns of Navarone, Ice Station Zebra and Where Eagles Dare – all three were made into popular films. He also published two novels under the pseudonym Ian Stuart. His books are estimated to have sold over 150 million copies, making him one of the best-selling fiction authors of all time.
According to one obituary, "he never lost his love for the sea, his talent for portraying good Brits against bad Germans, or his penchant for high melodrama. Critics deplored his cardboard characters and vapid females, but readers loved his combination of hot macho action, wartime commando sagas, and exotic settings that included Greek Islands and Alaskan oil fields."