Blair Atholl is a small town in Perthshire, Scotland, built about the confluence of the Rivers Tilt and Garry in one of the few areas of flat land in the midst of the Grampian Mountains. The Gaelic place-name Blair, from blàr, 'field, plain', refers to this location. Atholl, which may mean 'new Ireland', is the name of the surrounding district.
At the request of the people of the town, on 13 March 2008, it was announced that Blair Atholl would be included in the Cairngorms National Park.
The town is bypassed by the A9 and has a railway station on the Highland Main Line. The main road north from Perth to Inverness ran through the village until it was bypassed since 1984.
Blair Atholl's most famous feature is Blair Castle (NN 865 662), one of Scotland's premier stately homes, and the last castle in the British Isles to be besieged, in 1746 during the last Jacobite Rebellion. The Castle was the traditional home of the Earls (later Marquesses, now Dukes) of Atholl. The Duke of Atholl is the only person in the United Kingdom allowed to raise a private army. This army, known as the Atholl Highlanders, conducts largely social and ceremonial activities, and primarily consists of workers on the extensive Atholl Estates.