A cairn is a man-made pile of stones.
Cairn may also refer to:
Places Cairn O' Mounth (), a high mountain pass in Aberdeenshire, Scotland Cairn Toul (from the Gaelic , "Hill of the barn"), the 4th highest mountain in Scotland and the 2nd highest point in the western massif of the Cairngorms Cairnbaan (), a village in Argyll and Bute, western Scotland. Cairness House, a country house in Aberdeenshire, Scotland, built in the 1790s in the Neoclassical style Cairneyhill, a small village near Dunfermline in west Fife, Scotland Cairngaan, Wigtownshire, the southernmost settlement in Scotland Cairnie Hill, a hill in the Ochils, in Fife, Scotland Cairnlea, Victoria, a suburb of Melbourne in Australia (English: Cairnburgh More), one of the Treshnish Isles in the Inner Hebrides of Scotland Cairnpapple Hill, a major Neolithic and Bronze Age ritual site in central lowland Scotland Cairnryan (, ), a small village in Dumfries and Galloway, Scotland Cairn University, a private Christian university in Langhorne Manor, Pennsylvania Cairn Water, a river in Dumfries and Galloway, Scotland Carn Clonhugh ( or ), a hill in County Longford, Republic of Ireland Carncastle or Cairncastle, a small village and civil parish in County Antrim, Northern Ireland
People John Elliott Cairnes (1823–1875), an Irish economist, described as the "last of the classical economists"
Arts, entertainment, and media Cairn.info, a French-language web portal of scholarly materials in the humanities and social sciences Cairn, 2021 album by Fergus McCreadie Cairn (video game), a 2026 video game
Other uses Cairn circle, another name for a bowl barrow, a type of Neolithic and Bronze Age burial mound or tumulus Cairn Energy, one of Europe's leading independent oil and gas exploration and development companies Cairn Terrier, one of the oldest of the terrier breeds, originating in the Scottish Highlands and recognized as one of Scotland's earliest working dogs Cairn Valley Light Railway, a former rural railway line built to connect the Cairn Valley with the main railway network at Dumfries, closed in the 1940s
See also Cairn Hill (disambiguation) Cairncross (disambiguation) Cairngorm (disambiguation) Cairns (disambiguation) Carn