Castle Caereinion railway station is a railway station on the 2 ft 6 in (762 mm) narrow gauge Welshpool and Llanfair Light Railway in Mid Wales. It serves the nearby village of Castle Caereinion and lies 3+3⁄4 miles (6.0 km) from the Welshpool Raven Square terminus. The station was opened on 6 April 1903. Two platforms are present and a passing loop that sees occasional use. The main platform is raised whilst the other is at ground level.