Milldown is a hill in the Rhinns of Kells range in the Galloway Hills, part of the Southern Uplands of Scotland. It is located immediately north of Meikle Millyea - between these two hills lie the Lochans of Auchniebut, a series of small water bodies at an approximate elevation of 650m - possibly the highest permanent water bodies in the Southern Uplands. As well as this, the hill is also flanked on its SE side by forest plantation - possibly the highest planted commercial forestry in the Southern Uplands. Like most of its neighbours, it is most easily climbed from the east at Forrest Lodge.