Pierre François Marie Louis Boulle (20 February 1912 – 30 January 1994) was a French author. He is best known for two works, The Bridge over the River Kwai (1952) and Planet of the Apes (1963), that were both made into award-winning films.
Boulle was an engineer serving as a secret agent with the Free French in Singapore, when he was captured and subjected to two years' forced labour. He used these experiences in The Bridge over the River Kwai, about the notorious Death Railway, which became an international bestseller. The film, named The Bridge on the River Kwai, by David Lean won seven Oscars, and Boulle was credited with writing the screenplay, because its two actual screenwriters had been blacklisted.
His science-fiction novel Planet of the Apes, in which intelligent apes gain mastery over humans, was adapted into a series of nine award-winning films that spawned magazine and TV versions and popular themed toys.