Sir Peter Levin Shaffer was an English playwright, screenwriter, and novelist. He was best known for the plays Equus and Amadeus, the latter of which was adapted for the screen by Miloš Forman, with a screenplay by Shaffer, for which he won an Academy Award.

Besides his major works, Shaffer wrote various other plays and screenplays, making significant contributions to the world of theater and film. His style often focused on psychological drama and moral dilemmas, captivating audiences worldwide.