The A77 road is a major road in Scotland. It runs in a southwesterly direction from the city of Glasgow, past the towns of Giffnock, Newton Mearns, Kilmarnock, Prestwick, Ayr, Girvan and Stranraer to the village of Portpatrick on the Irish Sea. It passes through the council areas of Glasgow City, East Renfrewshire, East Ayrshire, South Ayrshire and Dumfries and Galloway.

Giffnock is a town and the administrative centre of East Renfrewshire in the Central Lowlands of Scotland.