The Heinkel He 519 was a high speed German single-seater bomber designed in 1944 by Heinkel. Based on the Heinkel He 119, a private venture by Heinkel to test radical ideas by the Günter brothers, the He 519 was designed to use the 24-cylinder Daimler-Benz DB 613, but the aircraft remained a concept and was abandoned at the end of the war.