The Polish 4th Rifle Division 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.

Polish 5th Siberian Rifle Division was a Polish military unit formed in 1919 in Russia during the aftermath of World War I. The division fought during the Polish-Soviet War, but as it was attached to the White Russian formations, it is considered to have fought more in the Russian Civil War. Its tradition was continued in the Polish Army as the 30th Infantry Division.