Sgurr Thuilm is a Munro at the head of Glen Finnan, in the Glenfinnan area of the Highlands of Scotland. Its elevation is 963 m (3,159 ft feet) and its prominence is 614 m (2,014 ft). It is a steep sided, craggy hill, and is usually climbed in conjunction with neighbouring Sgurr nan Coireachan, also a Munro, to which it is joined by a rocky ridge.
Common ascents begin at Glen Finnan from the south or from the west end of Loch Arkaig to the north east. Views from the summit are of the lochs and mountains in the area, visible on all sides.