The Orange Tree Theatre is a 180-seat theatre in Richmond, South-West London. It was specifically built in-the-round to suit the style of theatre it wanted to present. The venue was previously a disused primary school dating back to 1867, built in the Victorian Gothic style.

The theatre was established in 1971 by Sam Walters and Auriol Smith, in an intimate room above The Orange Tree pub opposite the present building. As the success of the company grew, they acquired the new venue and opened in 1991, 20 years after they established themselves. Walters has been acknowledged as one of the longest-serving theatre directors in London, having been the artistic lead of the Orange Tree for over 30 years (1971 to 2014).

The venue is well regarded by the theatrical community and has previously received funding and grants from various sources to enact the conversion of the venue. In 2003, the extension took place, renovating the neighbouring building (which was formerly a bank) into a space dedicated to rehearsals, set-building and costume storage.

The Orange Tree Theatre is recognised for its staging of new plays and the rediscovery of classics. Alongside its wide repertoire of professional works, the Orange Tree Theatre also has an educational participation programme which involves 10,000 people each year with the workings of the theatre.