The Royalty Theatre was a small London theatre situated at 73 Dean Street, Soho, which opened in 1840 as Miss Kelly's Theatre and Dramatic School and finally closed to the public in 1938. The architect was Samuel Beazley. The theatre's opening was ill-fated, and it was little used for a decade. It changed its name twice and was used by an opera company, amateur drama companies and for French pieces. The Co-Optimists played at the theatre after the war as did Noël Coward's The Vortex. In 1932, While Parents Sleep was a hit. The theatre closed in 1938 and was demolished in 1953.