Merthyr Tydfil F.C.

''This article is about the club that existed from 1945 to 2010. For the reformed club, see Merthyr Town F.C.''

Merthyr Tydfil Football Club (Welsh: Clwb Pêl-droed Merthyr Tudful) was a Welsh football club based in the town of Merthyr Tydfil, South Wales. In 2010 the club was liquidated and reformed under the name Merthyr Town, which was accepted into Division One of the Western Football League.

During the club's existence, despite being based in Wales, they competed in the English football league system.