The Siege of Bredevoort in 1597 was a siege of Bredevoort by the military forces led by Maurice of Nassau, Prince of Orange, during the Eighty Years War and the Anglo-Spanish War. The siege lasted from October 1 until October 9, after that day Bredevoort was occupied by the besiegers. The siege was part of a campaign which Maurice conquered the cities Turnhout, Alphen, Rijnberk, Meurs, Bredevoort, Groenlo, Goor, Enschede, Oldenzaal, Ootmarsum and Lingen.