Peter Shaffer (born May 15, 1926) is a British dramatist, author of numerous award-winning plays, several of which have been filmed. He was born in Liverpool, and is the twin brother of another playwright, Anthony Shaffer. He gained a scholarship to Cambridge University to read History.

Peter Shaffer's works include:

  • The Salt Land (1954), his first play, which was presented on BBC television.
  • Five Finger Exercise (1958)
  • The Royal Hunt of the Sun (1964) which examines the conquest of Peru by the Spanish, and was made into a 1969 film.
  • Black Comedy (1965) which explores the effect loss of light would have on a group of people who all hold things from each other.
  • Equus (1973), which involves a stable-boy who stabs 6 horses in their eyes, won the 1975 Tony Award for Best Play and the New York Drama Critics Circle Award, and was made into a 1977 film.
  • Amadeus (1979) which tells the story of how court composer Antonio Salieri attempted to destroy Wolfgang Amadeus Mozart of whom he was jealous, and also won a Tony Award for Best Play, in 1981. It was made into a 1984 film, which won eight Academy Awards including Best Picture.
  • Lettice and Lovage (1987)