Erich Rudolf Bagge (30 May 1912 – 5 June 1996), was a German scientist engaged in German Atomic Energy research and the German nuclear energy project during the Second World War. He developed a gaseous uranium enrichment device (Isotopenschleuse or isotope sluice) for enriching the U-235 isotope content of uranium in 1944. In 1945, he was one of several scientists captured by the Allied Forces at the end of the War. After he was released, Bagge went work at the University of Kiel.