The Principality of Stavelot-Malmedy is a principality of the Holy Roman Empire.
Princely power is exercised by the Benedictine abbot of the imperial double monastery of Stavelot and Malmedy, founded in 651.
At 600 km2 (230 sq mi), it is the second-smallest territory in the Empire, after the Duchy of Bouillon at 140 km2 (54 sq mi).
Along with Bouillon and the Prince-Bishopric of Liège, it is one of only three principalities in the region that are never a part of the Southern Netherlands, all having been a part of the Lower Rhenish Imperial Circle, rather than the Burgundian Circle.In 1795 the principality is abolished and its territory is incorporated into the French département of Ourthe.
The Congress of Vienna in 1815 assigns Stavelot to the United Kingdom of the Netherlands and Malmedy becomes part of the Prussian district of Eupen-Malmedy.
Both are currently parts of the Kingdom of Belgium — since the 1830 Belgian Revolution and the 1919 Treaty of Versailles respectively.