Sadler's Wells Theatre is a performing arts venue located in Rosebery Avenue, Clerkenwell in the London Borough of Islington. The present day theatre is the sixth on the site since 1683.
It consists of two performance spaces: a 1,500 seat main auditorium and the Lilian Baylis Studio, with extensive rehearsal rooms and technical facilities also housed within the site. Sadler's Wells is one of the United Kingdom's foremost dance venues and producing houses, with a number of associated artists and companies who produce original works for the theatre.