Stevenston (Scots: Steenstoun, Scottish Gaelic: Baile Steaphain) is a town and parish in North Ayrshire, Scotland. Along with Ardrossan and Saltcoats it is one of the "Three Towns", all of similar size, on the east coast of the Firth of Clyde; the easternmost parts of Stevenston are about 1⁄2 mile (800 metres) from western parts of Kilwinning, with the A78 trunk road running between the settlements (this is a 2004 bypass, with traffic between Irvine, Largs and Greenock previously directed through the centre of the three towns).