The Sovereign Principality of the United Netherlands (Dutch: Souvereine Vorstendom der Verëenigde Nederlanden) is a short-lived sovereign principality and the precursor of the United Kingdom of the Netherlands, in which it is reunited with the Southern Netherlands in 1815.

The principality is proclaimed in 1813 when the victors of the Napoleonic Wars establish a political reorganization of Europe, which will eventually be defined by the Congress of Vienna.