Treforest Estate railway station (also Trefforest Estate, Welsh: Ystad Trefforest) 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 (14 km) north-west of Cardiff Central.

Passenger services are provided by Transport for 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.

In the spring of 2016 new shelters were installed on the platform ahead of the South Wales Metro project.

The station is to be relocated by December 2025 as part of the South Wales Metro and has been included in the Wales & Borders franchise. This is to improve safety and convenience.

Mondays to Saturdays, there are 8 trains per hour southbound towards Cardiff Queen Street, with 2 continuing to Cardiff Bay and 6 continuing to Cardiff Central. 4 of those 6 loop around the City Line back to Radyr and onwards again to Pontypridd.There are 8 trains per hour towards Pontypridd with two terminating at Pontypridd, 2 to Aberdare, 2 to Merthyr Tydfil and 2 to Treherbert. Sundays see 4tph to Cardiff Central and 1tph to Aberdare, Merthyr Tydfil and Treherbert with 1 terminating at Pontypridd.

Preceding station	National Rail			Following station
Taffs Well		Transport for Wales Merthyr Line		Treforest

Media related to Treforest Estate railway station at Wikimedia Commons

• Train times and station information for Treforest Estate railway station from National Rail