2001: A Space Odyssey is a 1968 science fiction novel by British writer Arthur C. Clarke. It was developed concurrently with Stanley Kubrick's film version and published after the release of the film. Clarke and Kubrick worked on the book together, but eventually only Clarke ended up as the official author. The story is based in part on various short stories by Clarke, including "The Sentinel". By 1992, the novel had sold three million copies worldwide. An elaboration of Clarke and Kubrick's collaborative work on this project was made in the 1972 book The Lost Worlds of 2001.

Sir Arthur Charles Clarke was a British science fiction writer, science writer, futurist, inventor, undersea explorer, and television series host.