Beinn Dorain is a Munro of 1,076 m in Argyll and Bute. It overtops all four of its nearest neighbours; the tallest of them, Beinn an Dothaidh, reaches 1,002.3 m.
It stands 190.8 m above its nearest neighbour, Beinn a' Chaisteil (Argyll and Bute, Perth and Kinross), 2.6 km to the south-east. Of the register hills in Argyll and Bute, only Ben Cruachan stands higher. It is 296.9 m above the average height of the 72 register hills in Argyll and Bute. The database describes the top as a large cairn.