Coran of Portmark is a hill in the Rhinns of Kells, a sub-range of the Galloway Hills range, part of the Southern Uplands of Scotland.

The most northerly Donald of the range, it is climbed from a number of directions; most commonly from Garryhorn near Carsphairn, often the first hill of a full traverse of the ridge.

[1] An old settlement to the west lends its name to the hill.

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