Bridge of Allan (Scots: Brig Allan, Scottish Gaelic: Drochaid Ailein), also known colloquially as Bofa, is a former spa town in the Stirling council area in Scotland, just north of the city of Stirling.

Overlooked by the National Wallace Monument, it lies on the Allan Water, a northern tributary of the River Forth, built largely on the well-wooded slopes of the Westerton and Airthrey estates, sheltered by the Ochil Hills from the north and east winds. Most of the town is to the east of the river; the bridge is part of the A9, Scotland's longest road, while the railway line and the M9 pass to the west of the river. Bridge of Allan railway station is on the electrified Edinburgh to Dunblane Line and is accessible by train from Stirling in under 5 minutes as well as London in under six hours.

During the Iron Age, the local people of the area were known as the Maeatae and it was they who constructed a powerful hillfort nearby. The early village consisted of seven small clachans: Bridge End, Kierfield, Old Lecropt, Pathfoot, Logie, Corntown and the Milne of Airthrey. The villages were very separate and the villagers lived in the small world of their own communities.

The site occupied by modern Bridge of Allan stretches from the clachan of Logie across the Allan Water to the University of Stirling. It was first mentioned in a charter granted by King David I. The charter was written in connection with a dispute between the nuns of North Berwick and the monks at Dunfermline Abbey over the tithes of Airthrey and Corntown. It is un-dated, but had been granted by 1146.

A hog's back, narrow, stone bridge was built to replace the old ford across the River Allan in 1520. It rose sharply from the riverbank and dipped steeply at the other side. Soon after a few cottages began to appear around the ends of the bridge and an embryonic Bridge of Allan slowly formed. In the woods above the bridge, a mine opened. This was worked from around 1550, and quantities of copper, silver and gold were extracted.

By the middle of the seventeenth century, the Airthrey Estate had passed to relatives of the Marquess of Montrose, the Grahams. James Graham rose for the king during the Wars of the Three Kingdoms, and in 1645 as the army of the Duke of Argyll passed through the Airthrey estate on its way to the battle of Kilsyth they burned down the manor house.

The Jacobites were in Bridge of Allan in 1745, where three hundred highlanders set up a roadblock on the bridge and charged a toll for its passage. One of the old toll posts is still on display on a path leading up from Henderson Street.

In the early 19th century the town was little developed and typified by small, straw-roofed cottages.