Birmingham Repertory Theatre, commonly called Birmingham Rep or just The Rep, is a producing theatre based on Centenary Square in Birmingham, England. Founded by Billie Lester, it is the longest-established of Britain's building-based theatre companies and one of its most consistently innovative.

Centenary Square is a public square on the north side of Broad Street in Birmingham, England, named in 1989 to commemorate the centenary of Birmingham achieving city status. The area was an industrial area of small workshops and canal wharves before it was purchased by the council in the 1920s for the creation of a grand civic centre scheme to include museums, council offices, cathedral and opera house. The scheme was abandoned after the arrival of World War II with only the Hall of Memory and half of the planned Baskerville House complete. After the war the scheme was revived in a simpler form however the council never managed to implement the design.