The Siege of Steenwijk took place from October 18, 1580 – February 23, 1581 during the Eighty Years' War and the Anglo–Spanish War between a besieging Spanish force under turncoat George van Lalaing against a States garrison at Steenwijk under Johan van den Kornputand. An English and States force under John Norreys successfully relieved the town and the Spanish subsequently lifted the siege in February leaving the Dutch and English victorious.