Loch Tay (Scottish Gaelic, Loch Tatha) is a freshwater loch in the central highlands of Scotland. The watershed of Loch Tay traditionally formed the historic province of Breadalbane. It is a long, narrow loch of around 14.55 miles (23.42 km) long, and typically around 1 to 1.5 miles (1.6 to 2.4 km) wide, following the line of the strath from the south west to north east. It is the sixth-largest loch in Scotland by area and over 150 metres (490 ft) deep at its deepest.

Killin is a village situated at the western head of Loch Tay. The west end of the village is magnificently sited around the scenic Falls of Dochart, the main street leading down towards the Loch at the confluence of the rivers Dochart and Lochay.