Polish 6th Infantry Division (Polish: 6. Dywizja Piechoty) was a unit of the Polish Army in the interbellum period, which fought in the Polish–Ukrainian War, Polish–Soviet War and Polish September Campaign. It was formed on May 9, 1919, in the area around Kraków, its first commandant was Colonel Ignacy Pick. Between 1919 and 1920, the unit fought Ukrainian troops in eastern part of former Galicia. Then, it participated in the Polish–Soviet War, halting the advance of Soviet First Mounted Army led by General Semyon Budyonny. Several soldiers were after the conflict awarded with various orders, including the Virtuti Militari. In 1921, when hostilities ended, the Division returned to its bases – headquarters and most regiments were stationed in Kraków, some other regiments were garrisoned in Tarnów and Wadowice.
The Sixth Infantry Division was formed in early May 1919 in western part of former Austrian Galicia. It consisted of elements of the dissolved Austro-Hungarian Army, in which soldiers were ethnic Poles. At first, the division was divided into XI Infantry Brigade (12th Infantry Regiment, 16th Infantry Regiment), XII Infantry Brigade (17th Infantry Regiment, 20th Infantry Regiment), and VI Artillery Brigade (6th Field Artillery Regiment and 6th Heavy Artillery Regiment). Furthermore, there was the 5th Sapper Battalion.
In 1919–1920, the division fought with distinction in the Polish–Ukrainian War and Polish–Soviet War in Eastern Galicia. It engaged the enemies of newly restored Poland in several battles: Dubno, Jelnica, Zamosz, Szpanow, Klewan and Jaroslawicze. 54 of its soldiers were awarded War Cross of the Virtuti Militari, and 633 were granted the Cross of Valour (Poland).