Tonyrefail is a village and community in Rhondda Cynon Taf County Borough, Wales. It is situated north west of Llantrisant at the head of the Ely Valley, south of the Rhondda, being around from Trebanog and around from Williamstown. It is also around from the village of Gilfach Goch. Historically Tonyrefail was the site of a rural hamlet, it evolved into an industrial village during the second half of the 19th century, when coal and steel became synonymous with the South Wales Valleys. It now has a population of 11,035.