Clogwyn is an intermediate station on the Snowdon Mountain Railway. It is located on an exposed ridge overlooking the Llanberis Pass and Clogwyn Du'r Arddu cliffs, a popular climbing spot.
The line starts in the valley bottom at Llanberis at an altitude of , Clogwyn station stands at .The summit station stands at , below the summit of the mountain.
The station opened with the railway on 6 April 1896, but both closed the same day following an accident. They reopened on 9 April 1897 without mishap and have operated since except during wartime.
The station has one platform.