Hard Knott is a Lake District fell of 549.6 m in Cumberland. Its drop clears the 150 m Marilyn standard by only 6.2 m.
All four of its nearest neighbours are higher, up to Crinkle Crags – Long Top at 859 m. It sits below Harter Fell (Eskdale), only 3.0 km to the south-west and 103.6 m higher. It is one of the 39 Wainwrights that are also Marilyns. On the Wainwrights height ladder it sits between Rosthwaite Fell – Bessyboot (551 m) and Meal Fell (549.4 m). Its nearest higher summit, Little Stand (740 m, 2.1 km north-east), is a listed top not profiled here. It falls on two OS 1:50,000 sheets, 89 and 90.