English screenwriter and dramatist noted for his epic screenplays.

Bolt began work in 1941 for an insurance company, attended Victoria University of Manchester in 1943, and then served in the Royal Air Force and the army during World War II. After earning a B.A. in history at Manchester University in 1949, he worked as a schoolteacher until 1958, when the success of his play Flowering Cherry (London, 1957), a Chekhovian study of failure and self-deception, enabled him to leave teaching. Bolt's most successful play was A Man for All Seasons, a study of the fatal struggle between Henry VIII of England and his lord chancellor, Sir Thomas More, over issues of religion, power, and conscience. The play drew intense acclaim in productions at London (1960) and New York City (1961).

Bolt wrote the screenplays for director David Lean's epic films Lawrence of Arabia (1962) and Doctor Zhivago (1965) and then adapted A Man for All Seasons for director Fred Zinnemann's motion-picture version of the play in 1966. His other screenplays included Ryan's Daughter (1970), which was directed by Lean; Lady Caroline Lamb (1972), which Bolt himself directed; The Bounty (1984); and The Mission (1986). The most successful of Bolt's later plays was Vivat! Vivat Regina! (1970).