Thirteen Years' War may refer to:

• the Thirteen Years' War (1454–66) between the Prussian Confederation and Poland versus the Teutonic Order state
• the Long War (1593–1604/1606) between the Habsburg Monarchy and the Ottoman Empire
• the Russo-Polish War (1654–1667) between Russia, the Cossacks and the Polish-Lithuanian Commonwealth

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.