A77 road

A77
On The A77 near Minishant, showing SPECS camera
Route information
Length	91.7 mi[1] (147.6 km)
Major junctions
Northeast end	Glasgow 55°51′23″N 4°15′27″W / 55.8563°N 4.2576°W / 55.8563; -4.2576 (A77 road (northern end))
Major intersections	A814 A8 A727 A726 M77 motorway J5–8 A719 A71 A76 A735 A78 A719 A70 A713 A79 A719 A714 A751 A717 A75 A716
Southwest end	Portpatrick 54°50′30″N 5°07′00″W / 54.8418°N 5.1168°W / 54.8418; -5.1168 (A77 road (southern end))
Location
Country	United Kingdom
Primary destinations	Glasgow Kilmarnock Ayr Girvan Stranraer
Road network
Roads in the United Kingdom Motorways A and B road zones
← A76 → A78

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.

It has full trunk road status from the terminus of the M77 motorway at Fenwick to the junction with the A75 in Stranraer. Some sections - most notably those between Turnberry and Girvan, and thereon to Ballantrae, run directly on the coastline with scenic views over the Firth of Clyde and the Irish Sea. The section between Cairnryan and Stranraer runs on the shore of Loch Ryan.

The A77 is an important link from Glasgow to one of its two major airports, Prestwick Airport, and to the two Northern Ireland ferry terminals at Cairnryan. As a result, the road is subject to a busy mixture of commuter, tourist and heavy goods vehicle traffic which has necessitated upgrades to many sections.