The Liverpool Playhouse is a theatre in Williamson Square in the city of Liverpool, England. It originated in 1866 as a music hall, and in 1911 developed into a repertory theatre. As such it nurtured the early careers of many actors and actresses, some of whom went on to achieve national and international reputations. Architectural changes have been made to the building over the years, the latest being in 1968 when a modern-style extension was added to the north of the theatre. In 1999 a trust was formed, joining the management of the Playhouse with that of the Everyman Theatre.

Liverpool is a city and metropolitan borough in Merseyside, northwest England. It had a population of 496,770 in 2022. The city is located on the eastern side of the Mersey Estuary, adjacent to the Irish Sea, and is approximately 178 miles (286 km) from London. Liverpool is the fifth largest city in the United Kingdom, the largest settlement in Merseyside and part of the Liverpool City Region, a combined authority with a population of over 1.5 million.