The Battle of Głogów or Defense of Głogów (, ) was fought on 24 August 1109 at the Silesian town of Głogów, between the Kingdom of Poland and the Holy Roman Empire. Recorded by the medieval chronicler Gallus Anonymus it is presently one of the most well known battles in Polish history. The Polish forces were led by Duke Bolesław III Wrymouth, while the Imperial forces were under command of King Henry V of Germany. Bolesław was victorious.