Siege of Ypres may refer to:Siege of Ypres (1383), during Despenser's Crusade Siege of Ypres (1583–1584), during the Eighty Years' War Siege of Ypres (1648), during the Franco-Spanish War (1635–1659) Siege of Ypres (1658), after the Battle of the Dunes (1658) Siege of Ypres (1678), during the Franco-Dutch War Siege of Ypres (1709), before the Battle of Malplaquet Siege of Ypres (1744), during the War of the Austrian Succession Siege of Ypres (1794), during the Flanders Campaign