BEITH, town and parish, Ayrshire, Scotland, 184m. S.W. of Glasgow, by the L.M.S. railway. Pop. of parish (1931), 5977• The town stands high, overlooking Kilbirnie loch, but in a district disfigured by manufacturing and mining industries. Coal, iron and limestone are worked and there are manufactures of linen thread, netting and furniture, leather works and silk printing works. The ruins of a castle of the Montgomeries are at Giffen, near Beith.