Grey Knotts is a fell in the English Lake District. It is situated one kilometre south of the B5289 road as it crosses the Honister Pass. It is well seen from mid-Borrowdale as it rises above Seatoller. Grey Knotts reaches a height of 697 metres and is part of a ridge which ascends from the woodland behind Seatoller and continues south-west and then south for four kilometres to Great Gable. The fell's name really only applies to the summit rocks, but has been adopted for the entire fell with the high ground in this area, locally known as Seatoller Fell on Ordnance Survey maps.