5th Lwów Infantry Division (Polish: 5 Lwowska Dywizja Piechoty) was a unit of the Polish Army in the interbellum period, with headquarters stationed in Lwów. It was created on May 20, 1919, during the Polish–Ukrainian War in Eastern Galicia. Originally, it consisted of three infantry regiments, but later it was strengthened with additional two. During Polish September Campaign it was commanded by General Juliusz Zulauf. The Division consisted in September 1939 of these regiments: