Tulliallan was an estate in Perthshire, Scotland, near to Kincardine, and a parish. The Blackadder lairds of Tulliallan, a branch of the Blackadder border clan, wielded considerable power in the 15th and 16th centuries. The modern Tulliallan Castle is relatively recent, built in 1812-1820 and now the home of the Scottish Police College

Perthshire, officially the County of Perth, is a historic county and registration county in central Scotland. Geographically it extends from Strathmore in the east, to the Pass of Drumochter in the north, Rannoch Moor and Ben Lui in the west, and Aberfoyle in the south; it borders the counties of Inverness-shire and Aberdeenshire to the north, Angus to the east, Fife, Kinross-shire, Clackmannanshire, Stirlingshire and Dunbartonshire to the south and Argyllshire to the west. It was a local government county from 1890 to 1930.