​AUCHTERARDER, a town and parish of Scotland, county of Perth, 15 miles W.S.W. of Perth. The town consists of a single street about a mile in length. It was formerly a royal burgh, but is now disfranchised. Near it is an ancient castle, said to have been a hunting-seat of Malcolm Canmore. It was in connection with this parish that the ecclesiastical dispute arose which led to the Dis ruption in the Church of Scotland in 1843. Population of town in 1871, 2599.