Sir Trevor Robert Nunn, CBE (born 14 January 1940) is an English theatre director. Nunn has been the Artistic Director for the Royal Shakespeare Company, the Royal National Theatre, and, currently, the Theatre Royal, Haymarket. He has directed dramas for the stage, like Macbeth, as well as opera and musicals, such as Cats (1981) and Les Misérables (1985).
Nunn has been nominated for the Tony Award for Best Direction of a Musical, the Tony Award for Best Direction of a Play, the Laurence Olivier Award for Best Director, and the Drama Desk Award for Outstanding Director of a Musical, winning Tonys for Cats, Les Misérables, and Nicholas Nickleby and the Olivier Awards for productions of Summerfolk, The Merchant of Venice, Troilus and Cressida, and Nicholas Nickleby. In 2008 The Telegraph named him among the most influential people in British culture. He has also directed works for film and television.