Oberleutnant Josef Pürer (1894-1918) was an Austro-Hungarian World War I flying ace credited with six aerial victories. A volunteer for the artillery when the war began, he fought for two years on the Russian Front. He was commissioned as an officer on 1 January 1916; later that year he transferred to the Austro-Hungarian Aviation Troops. He served as an aerial observer in northern Italy until early 1918. After scoring six aerial victories, he was trained as a fighter pilot by 11 July 1918. He was killed in action by Sidney Cottle on 31 August 1918.