Dunkeld is a town in Perth and Kinross, Scotland. The location of a historic cathedral, it lies on the north bank of the River Tay, opposite Birnam. Dunkeld lies close to the geological Highland Boundary Fault, and is frequently described as the "Gateway to the Highlands" due to its position on the main road and rail lines north. Dunkeld has a railway station, Dunkeld & Birnam, on the Highland Main Line, and is about 25 kilometres north of Perth on what is now the A9 road. The main road formerly ran through the town, however following modernisation of this road it now passes to the west of Dunkeld.

The River Tay is the longest river in Scotland and the seventh-longest in Great Britain. The Tay originates in western Scotland on the slopes of Ben Lui, then flows easterly across the Highlands, through Loch Dochart, Loch Iubhair and Loch Tay, then continues east through Strathtay, in the centre of Scotland, then southeasterly through Perth, where it becomes tidal, to its mouth at the Firth of Tay, south of Dundee. It is the largest river in the United Kingdom by measured discharge. Its catchment is approximately 2,000 square miles, the Tweed's is 1,500 sq mi (3,900 km2) and the Spey's is 1,097 sq mi (2,840 km2).