Mam na Gualainn is a Corbett of 796.5 m in Highland. It stands 174.7 m above its nearest neighbour, Tom Meadhoin, 2.8 km to the west.
On the Corbetts height ladder it sits between Beinn Dronaig (796.8 m) and Sgurr Coire Choinnichean (796 m). Its nearest higher summit, Meall a' Chaorainn (909.6 m, 3.2 km north), is a listed top not profiled here. The summit is marked by a trig point.