Walter Blume (10 January 1896 – 27 May 1964) was a German fighter ace of World War I. During World War I, he flew with Jastas 26 and 9, gaining 28 aerial victories and earning the Iron Cross and the Pour le Merite. Post World War I he became a prominent aircraft designer for both Albatros and Arado, being one of the pioneers of jet propulsion design in airplanes.