Ian Watson (born 20 April 1943) is a British science fiction writer. He lives in Gijón, Spain.
His first novel, The Embedding, winner of the Prix Apollo in 1975, is unusual for being based on ideas from generative grammar; the title refers to the process of center embedding. A prolific writer, he has also written the novels Miracle Visitors, God's World, The Jonah Kit and The Flies of Memory and many collections of short stories. Watson is credited as author of the screen story for the motion picture A.I. Artificial Intelligence.
He has also written a series of novels relating to the Warhammer 40,000 line of games: Space Marine, and the Inquisition War trilogy of Inquisitor, Harlequin and Chaos Child (republished in 2002 by The Black Library, with Inquisitor retitled Draco).
