A91
The A91 near Yetts o' Muckhart
Route information
Length	53.4 mi (85.9 km)
Major junctions
East end	A915 at St Andrews 56°20′32″N 2°48′12″W / 56.3422°N 2.8034°W / 56.3422; -2.8034 (A91 road (eastern end))
Major intersections	A92 M90
West end	M9 M80 at Bannockburn 56°04′42″N 3°55′09″W / 56.0783°N 3.9192°W / 56.0783; -3.9192 (A91 road (western end))
Location
Country	United Kingdom
Primary destinations	Stirling, Kinross, St. Andrews
Road network
Roads in the United Kingdom Motorways A and B road zones
← A90 → A92

The A91 is a major road in Scotland, United Kingdom. It runs from St Andrews to Bannockburn, via Cupar. Along the way, the road runs adjacent to parts of the St. Andrews Old Course and Jubilee golf courses into Guardbridge. Past Guardbridge is Clayton Caravan Park. Further towards Cupar is the Eden Valley & Prestonhall Industrial Estates, home to such businesses as Cupar Garden Centre, Hoggs, Fishers Services and many others. Further down the A91 the road runs adjacent to the major A-road, the A92.

The A91 connects four areas: Stirlingshire, Clackmannanshire, Perthshire and Fife and a section of it is broken up by the M90 motorway near Kinross only to re-emerge and continue bound for Stirling or St Andrews depending on destination.

At Bannockburn the A91 emerges from the M9/M80 Pirnhall junction and skirts the urban area around Stirling and en route to St Andrews passes through Clackmannanshire villages and towns including Alva and Dollar. The road also features a Junction with an unusual layout at Yetts 'O Muckhart.

• Media related to A91 road (Scotland) at Wikimedia Commons