Aonach Shasuinn is a Corbett of 888 m in Highland. All four of its nearest neighbours lie to the west, so it stands at the eastern edge of its group.
Its nearest higher summit, Tigh Mor na Seilge (927.4 m, 3.6 km south-west), is a listed top not profiled here. The highest point is recorded as small embedded blade of rock, not a cairn.