The Polish 4th Rifle Division (Polish: 4. Dywizja Strzelców Polskich, Russian: Полская 4-я Стрелковая Дивизия) was a Polish military unit, forming, together with the Polish 5th Rifle Division of the Blue Army, the only part of the Polish military which took part in the Russian Civil War. Under the command of General Lucjan Żeligowski, it operated as an ally of the White movement from autumn 1918 to August 1919 in southern Russia and Bessarabia.