Joanna Żubr (ca. 1770–1852) was a Polish soldier of the Napoleonic Wars, a veteran of the Polish–Austrian War, and the first woman to receive the Virtuti Militari, the highest Polish military decoration. After the outbreak of the Napoleonic Wars and creation of the Duchy of Warsaw in 1808, Joanna Żubr with her husband, Michał, left Austrian-ruled Volhynia. Both joined the army of the new Duchy, with Joanna initially a camp-follower. Soon she enlisted in the 2nd Infantry Regiment (4th company, 2nd battalion) as a private, hiding that she was a woman from both her superiors and fellow soldiers.