Treforest Estate railway station is a small railway station in Treforest, near Cardiff, built to serve the workers and visitors of Treforest Industrial Estate. It is located on the Merthyr Line, 8.7 miles north-west of Cardiff Central. Passenger services are provided by Arriva Trains Wales. The station is built around a central island platform, which is accessible from a subway. It was opened by the Great Western Railway in 1942.