Robert Ludlum was an American author of 27 thriller novels, best known as the creator of Jason Bourne from the original The Bourne Trilogy series. The number of copies of his books in print is estimated between 300 million and 500 million. They have been published in 33 languages and 40 countries. Ludlum also published books under the pseudonyms Jonathan Ryder and Michael Shepherd.

Jason Bourne is the title character and the protagonist in a series of novels and subsequent film adaptations. The character was created by novelist Robert Ludlum. He first appeared in the novel The Bourne Identity (1980), which was adapted for television in 1988. The novel was adapted into a feature film of the same name in 2002 and starred Matt Damon in the lead role.