Afon Taf High School is a comprehensive high school for pupils aged 11 to 18 (plus students aged 19 to reach their A level Grades), based in the village of Troed-y-rhiw in the borough of Merthyr Tydfil, Wales. It serves a large catchment area of surrounding villages in the Merthyr valley, from Abercanaid & Pentrebach in the north to Bedlinog in the south.
The school's first headmaster was David W. Howells, who was previously headmaster at Quakers' Yard Grammar School. One of its longest serving teachers was Howard Davies, who for a time taught maths but eventually finished out his career at the school as a deputy headmaster. The current headmaster is Mr Mike Johns. The deputy headmaster is Mr Clifford Smith.
Sixth Form
The school is a strong supporter of the Sixth Form. Past years have seen calls to abolish the sixth form in Afon Tâf as well as others in Merthyr Tydfil in order to centre A-Level education in the county borough at a Sixth Form College.