Umlauf is an Austrian family name, found also in Moravia.Zeitschrift des Mährischen Landesmuseums - Volumes 3-4 - Page 38 Mährische Museumsgesellschaft, Brünn - 1903 "... daher zu vermuten, daß beide aus einem älteren Altarwerk, vielleicht einer früheren Stiftung der Familie Umlauf stammen mögen."
Notable people with the surname include: Ignaz Umlauf (1746-1796), Austrian composer, Kapellmeister of the emperor's German-language Singspiel theatre in Vienna Michael Umlauf (1781–1842), an Austrian composer, conductor (notably of Beethoven's 9th Symphony), and violinist, son of Ignaz Umlauf. Charles Umlauf (1911–1994), an American sculptor Umlauf Sculpture Garden and Museum Klaas Heufer-Umlauf (1983) a German television host K.A. Umlauf, student of Engel, who gave a complete proof of Engel's theorem in his 1891 dissertation References