Thunacar Knott is a fell in the central part of the English Lake District in the county of Cumbria.

These are a high rocky parapet looking down upon the valley of Great Langdale, fringing an area of moorland behind.

Despite this, Thunacar Knott is often by-passed by walkers because of its uninspiring appearance, being just a slight rise on the moorland between Harrison Stickle and High Raise.

Indeed, many people do not regard it as a separate fell, considering it just the outlying highest point of the spectacular Pavey Ark cliffs.

Even though Thunacar Knott is quite insignificant it is slightly higher than all the surrounding area and gives good all-round views, the prospect to the west being especially fine.