The Peacock Theatre is a theatre in the West End of London, England.
Peacock Theatre or Peacock Theater may also refer to:
Peacock Theater, a music venue in Los Angeles, California, US Peacock Theatre, Dublin, a theatre in Dublin, Ireland Peacock Theatre, Helsinki, a theatre in the Linnanmäki amusement park, Helsinki, Finland (also sometimes spelt Theater) Peacock Theatre, Hobart, a theatre in the Salamanca Arts Centre in Hobart, Australia