Luther is a 1961 play by John Osborne depicting the life of Martin Luther, one of the foremost instigators of the Protestant Reformation. Albert Finney created the role of Luther, which he performed with the English Stage Company at the Theatre Royal, Nottingham, the Théâtre Sarah Bernhardt, Paris, the Holland Festival, the Royal Court Theatre, London, the Phoenix Theatre, London, and the St. James Theatre, New York.

John James Osborne was an English playwright, screenwriter, actor, and entrepreneur. Born in London, he briefly worked as a journalist before starting out in theatre as a stage manager and actor. He lived in poverty for several years before his third produced play, Look Back in Anger (1956), brought him national fame.