The Shaftesbury Theatre was a theatre in central London, England, between 1888 and 1941. It was built by John Lancaster for his wife, Ellen Wallis, a well-known Shakespearean actress. The theatre was designed by C. J. Phipps and built by Messrs. Patman and Fotheringham at a cost of £20,000 and opened with a production of As You Like It on 20 October 1888. The theatre had a stage of 28' 6" square. The capacity was 1,196. It was located on the south side of Shaftesbury Avenue, just east of Gerrard Place.