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 353 ft (108 m), Clogwyn station stands at 2,556 ft (779 m).The summit station stands at 3,493 feet (1,065 m), 68 feet (21 metres) 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.

Preceding station	Heritage railways			Following station
Rocky Valley Halt		Snowdon Mountain Railway		Summit