The Welsh Railway Trust is responsible for the care of a number of historic railway locomotives and items of rolling stock. We are a registered charity (519531) and are based on the Gwili Railway in Carmarthenshire, Wales.

The Welsh Railway Trust was formed in 2021 when the Caerphilly Railway Society and the Gwili Vintage Carriage Group, two organisations with similar names merged. The trust is currently working to restore and maintain several locomotive and items of rolling stock, re-create a Taff Vale Railway passenger train of the 1890s and build a storage shed and exhibition space at Abergwili Junction.