Mountain Ash RFC is a member of the Welsh Rugby Union and is a feeder club for the Cardiff Blues.

It only took another four years for Mountain Ash to claim their first full international to represent Wales while still playing for the club, when Fred Miller was chosen to face Ireland in the 1896 Home Nations Championship.

In 1912, the team toured the south of France, and managed to beat Bayonne RFC and Pau, but the outbreak of the First World War made it difficult for the club to continue.

In 1963 the first clubhouse was opened by former Welsh international Judge Rowe Harding, which was followed by silverware in the 1964/65 season when they won the Mid District Championship.

The home ground, Parc Duffryn Pennar has modern facilities, including floodlights and a well maintained playing surface.