Broad Cairn is a Munro of 997.1 m in Aberdeenshire, Angus. Of the register hills in Aberdeenshire, Angus, only Cairn of Claise and Cairn Bannoch stand higher.
Its key col leads to Lochnagar – Cac Carn Beag, not to its nearest higher summit, Cairn Bannoch. Of the 6 register hills in Aberdeenshire, Angus, it has the smallest drop. All four of its nearest neighbours lie to the west, so it stands at the eastern edge of its group. It is a Munro but not a Marilyn: its 63.9 m of drop is short of 150 m.