Harrison Stickle is a fell in the central part of the English Lake District, situated above Great Langdale. The fell is one of the three (although the number is debated) fells which make up the picturesque Langdale Pikes, the others being Pike of Stickle and Loft Crag. Together they make up one of the most picturesque, and probably the best known, mountain groups in the District. A "stickle" is a hill with a prominent rocky top.
The Langdale Pikes form a raised rocky parapet around the southern and eastern edges of a high tableland centred upon Thunacar Knott. Harrison Stickle is the high point of this system and its crags fall south and east from the summit, presenting an arresting view from The Valley floor 2,000 ft below, or from further afield.