David Scase (21 September 1919 – 27 February 2003) was a British theatre director and actor. Born at Fulham, London, as the son of a bricklayer, his first job was in a bicycle factory in the mid-1930s.

He joined the Merchant Navy on the outbreak of World War II in 1939, but by the end of the war was working as a BBC sound engineer. He then joined Joan Littlewood's Theatre Workshop in Manchester and served as a stage manager, before moving to directing. He ran the Manchester Library Theatre, which he made into one of the most prestigious repertory theatres in the country, from the late 1950s until the 1970s.