The siege of Bonn took place from 3 to 12 November 1673 in Bonn, present day Germany, during the Franco-Dutch War. Having forced the armies of Louis XIV to retreat, the Dutch in 1673 went on the offensive. At Bonn, a garrison consisting of troops from France and the Electorate of Cologne was besieged by a force from the Dutch Republic (commanded by stadtholder William III), the Holy Roman Empire (commanded by Raimondo Montecuccoli), and Spain. The allied forces captured the garrison following a nine-day siege.

In 1689 Bonn was again the site of a major siege.

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50°43′48″N 7°06′00″E / 50.7300°N 7.1000°E / 50.7300; 7.1000