Ayr (; , "Mouth of the River Ayr") is a town and former Royal Burgh sitting along the west coast of Ayrshire in Scotland. It forms a part of the South AyrshireLocal Authority area, serving as the areas administrative centre. Historically, Ayr was the county town of Ayrshire until 1975. Ayr is currently the most populated settlement in Ayrshire and the South of Scotland. It is the 13th most populous locality in Scotland.