The Greater Manchester County Council (GMCC) — also known as the Greater Manchester Council (GMC) — was the top-tier local government administrative body for Greater Manchester from 1974 to 1986. A strategic authority, with responsibilities for public transport, planning, emergency services and waste disposal, it was composed of 106 members drawn from the ten metropolitan boroughs of Greater Manchester. The Greater Manchester County Council shared power with ten lower-tier district councils, each of which directed local matters.
Established with reference to the Local Government Act 1972, elections in 1973 brought about the county council's launch as a shadow authority, several months before Greater Manchester (its zone of influence) was officially created on 1 April 1974. The Greater Manchester County Council operated from its County Hall headquarters on Portland Street in central Manchester, until it was abolished 31 March 1986, following the Local Government Act 1985. Its powers were passed to the ten district councils of Greater Manchester, which had shared power with the GMCC. Some powers of the county council were restored when the district councils delegated strategic responsibilities (such as emergency services and public transport) to the county-wide Association of Greater Manchester Authorities and joint boards.