- a county in southern Wales. 43 sq. mi. (113 sq. km).
- a city in the county of Merthyr Tydfil, in southern Wales.
- a town in SE Wales, in Merthyr Tydfil county borough: formerly an important centre for the mining industry. Pop: 30 483 (2001)
- a county borough in SE Wales, created from part of N Mid Glamorgan in 1996. Pop: 55 400 (2003 est). Area: 111 sq km (43 sq miles)
