Leum Uilleim is a Corbett of 906.5 m in Highland. It stands 261.4 m above its nearest neighbour, Beinn na Cloiche, 4.6 km to the west.
On the Corbetts height ladder it sits between Fuar Tholl (907 m) and Beinn Maol Chaluim (906.3 m). The higher hill nearest to it, Beinn na Lap, is a Munro, 7.1 km to the north-east. The database describes the top as a large cairn on pile of stones.