The Battle of Jordanów took place on 1–3 September 1939, during the Invasion of Poland and the opening stages of World War II. It was fought between the German XVIII Panzer Corps of Gen.E.Beyer and the Polish 10th Motorized Cavalry Brigade under Col. Stanisław Maczek.

The 10th Cavalry Brigade was a Polish military unit in World War II. It was the only fully operational Polish motorized infantry unit during the Invasion of Poland, as Warsaw Armoured Motorized Brigade was not completed by September 1, 1939.