
Manx National Glens is a collective term for a series of glens in the Isle of Man which have been officially designated as tourist attractions. They are maintained by the Department of Environment, Food and Agriculture. The island is known for its "pocket sized" natural glens.

Onchan is a village in the parish of Onchan on the Isle of Man. It is at the north end of Douglas Bay. Administratively a district, it has the second largest population of settlements on the island, after Douglas, with which it forms a conurbation.

Colby is a small village in the south of the Isle of Man in the parish of Arbory. It lies on the A7 road between the towns of Castletown and Port Erin and close to the similarly sized village of Ballabeg.

Glen Auldyn is a narrow valley about 6 kilometres (3.7 mi) long on the Isle of Man, with a river of the same name. This flows in a NNE direction and flows into the River Sulby not far from its estuary, near Ramsey. It is entirely within the parish of Lezayre. The lower one-third of the valley is inhabited and is partly followed by the B16 road. This section is overlooked by Sky Hill.

Glen Helen or Lambfell Glen) is one of a series of eighteen Manx National Glens owned and maintained by the Forestry Amenity and Lands Directorate of the Isle of Man Department of Environment, Food and Agriculture.

Glen Maye is a glen and a small village on the west coast of the Isle of Man, 2½ miles (4 km) south of Peel. The village is connected to Peel by a bus service.

Glen Wyllin is a glen in the Isle of Man. It is one of the officially-listed Manx National Glens.

Groudle, or Groudle Glen, a glen on the outskirts of Onchan on the Isle of Man, is formed in a valley leading to the sea at the small port of the same name. It is one of the officially-listed Manx National Glens.

Onchan is a village in the parish of Onchan on the Isle of Man. It is at the north end of Douglas Bay. Administratively a district, it has the second largest population of settlements on the island, after Douglas, with which it forms a conurbation.

Silverdale Glen is a National Glen and recreational area near the village of Ballasalla in the parish of Malew on the Isle of Man. The recreation site consists of a small boating lake, café, playing fields, and a playground with a Victorian water-powered carousel.

Sulby Glen is a partly wooded glen in the parish of Lezayre in the Isle of Man. It runs north to south and is about 5 km long. In places the floor of the glen is only 50 metres wide, with steep sides.

Sulby Glen is a partly wooded glen in the parish of Lezayre in the Isle of Man. It runs north to south and is about 5 km long. In places the floor of the glen is only 50 metres wide, with steep sides.