Kirriereoch Hill is a Donald of 786.8 m in Dumfries and Galloway. Its drop clears the 150 m Marilyn standard by only 0.2 m.
No other Donald has less drop. Of the 12 register hills in Dumfries and Galloway, it has the smallest drop. The higher hill nearest to it, Merrick, is a Corbett, 1.6 km to the south-east. The highest point is recorded as large smooth rock, not a cairn.