The Dömitz Fortress is a bastion fort in Dömitz, Mecklenburg-Vorpommern, Germany. It was built by John Albert I, Duke of Mecklenburg-Güstrow, between 1559 and 1565, to secure Mecklenburg's border. The fort saw use during the Thirty Years' War and the Napoleonic Wars, and it was decommissioned in 1894.