Unlingen (German pronunciation: [ˈʊnlɪŋən]) is a municipality in the district of Biberach in Baden-Württemberg in Germany.

Unlingen lies in southwestern Germany, between the Upper Swabian mountain known as the Bussen and the river Danube.

In 1525, 2,000 farmers gathered in Unlingen as it became one of the starting points of the German Peasants' War.

During the Thirty Years' War, Unlingen was destroyed by both Imperial and Swedish troops.

In 1806, during the Napoleonic Wars, Unlingen became a part of the Kingdom of Württemberg and was assigned to the jurisdiction of Riedlingen.