Great Mell Fell is a Lake District fell of 536.6 m in Westmorland and Furness. It overtops all four of its nearest neighbours; the tallest of them, Souther Fell, reaches 522 m.
It is one of the 39 Wainwrights that are also Marilyns. Its nearest higher summit, Matterdale Common (541 m, 4.5 km south-west), is a listed top not profiled here.