West Glamorgan is a preserved county and former administrative county of Wales, one of the divisions of the traditional county of Glamorgan.
West Glamorgan was created on April 1, 1974, by the Local Government Act 1972 from the county borough of Swansea, the boroughs of Neath and Port Talbot, the urban districts of Glyncorrwg and Llwchwr, Gower Rural District, Pontardawe Rural District, and all of Neath Rural District except the parish of Rhigos. The main council offices were based in County Hall, Swansea.
West Glamorgan had four districts, as follows:
West Glamorgan County Council was abolished on April 1, 1996, being divided into the two unitary authorities of Swansea and Neath Port Talbot. Lliw Valley was partitioned between the two authorities.
West Glamorgan has remained in existence as a preserved county for some limited functions such as lieutenancy.