Glyder Fawr is a 3,000 ft mountain of 1,000.9 m in Conwy, Gwynedd. Only two of the register's Wales hills are higher.
It is the 4th highest Hewitt. It counts towards four lists: Hewitts, Nuttalls, Furths and Marilyns. Its nearest higher summit, Crib y Ddysgl (1,065.3 m, 4.2 km south-west), is a listed top not profiled here. The highest point is recorded as rock tor, not a cairn.