| Cwmbach | |
| Native Name: | Welsh: Cwm-bach |
| Symbol Location: | gb |
| Symbol: | rail |
| Borough: | Cwmbach, Rhondda Cynon Taf |
| Country: | Wales |
| Grid Name: | Grid reference |
| Manager: | Transport for Wales |
| Platforms: | 1 |
| Code: | CMH |
| Classification: | DfT category F2 |
| Years: | 1914 |
| Events: | Opened |
| Years1: | 13 June 1964 |
| Events1: | Closed |
| Years2: | 3 October 1988 |
| Events2: | Reopened |
| Footnotes: | Passenger statistics from the Office of Rail and Road |
| Mapframe: | yes |
| Mapframe-Zoom: | 13 |
Cwmbach railway station is a railway station serving the village of Cwmbach in Rhondda Cynon Taf, Wales. It is located on the Merthyr line branch of the Merthyr Line. Passenger services are provided by Transport for Wales.
The first station on this site was a halt opened by the Great Western Railway in 1914. It closed with the line in 1964. The present station was reopened by British Rail with Mid Glamorgan in 1988 with the line to Aberdare.
During 2005 construction work was carried out to double the platform length. This will now allow four carriage trains (DMU) to stop at the station. DB Cargo UK operate coal trains to Tower Colliery. These trains pass through the station on weekdays and on some Saturdays. Freightliner also operate an irregular stone service to Tower and these trains also pass through the station. Most passenger services to Barry Island are operated by Class 150s. The Class 150 either work in 4-car formation or 2 car formation Freight that passes through the station is handled by Class 66s but Class 60s have been seen.
On Mondays to Saturdays, there is a half-hourly service in each direction, northbound to and southbound to, and . In the evening, this drops to hourly.
On Sundays there is a general 2-hourly service to Barry Island with an hourly service in the morning and in the late afternoon. This is due to a campaign by the local Assembly Member and a successful trial in December 2017. The extra services began in April 2018.[1]