The name of the village means 'big village' (Clachan Mòr, in Gaelic) and may derive from a stone circle that formerly stood there; there are remains of a circular enclosure on Barrack Knowe near High Clachanmore farmhouse.
The old schoolhouse at Clachanmore
Clachanmore school is the most prominent building in the village. The building dates to 1831 and was the school for Ardwell. There is a small schoolmaster's house next door. Until 2003 it was an art gallery; it is now a private house.
^Maria Trotter, ed. Saxon, Galloway Gossip Sixty Years Ago: Being a Series of Articles Illustrative of the Manners, Customs, and Peculiarities of the Aboriginal Picts of Galloway, Choppington, Northumberland: R. Trotter, 1877, OCLC 25797165, pp. 79-80.
^Clachanmore, Royal Commission on the Ancient and Historical Monuments of Scotland.