Humboldt University of Berlin alumni

Ludwig Otto Hölder (December 22, 1859 – August 29, 1937) was a German mathematician born in Stuttgart.

Käte Fenchel née Käte Sperling (21 December 1905 – 19 December 1983) was a German-born Jewish mathematician, best known for her work on non-abelian groups.

Erich Neumann (Hebrew: אריך נוימן; 23 January 1905 – 5 November 1960) was a German psychologist, philosopher, writer, and student of Carl Jung.

Richard Rado FRS (28 April 1906 – 23 December 1989) was a German-born British mathematician whose research concerned combinatorics and graph theory. He was Jewish and left Germany to escape Nazi persecution. He earned two PhDs: in 1933 from the University of Berlin, and in 1935 from the University of Cambridge. He was interviewed in Berlin by Lord Cherwell for a scholarship given by the chemist Sir Robert Mond which provided financial support to study at Cambridge. After he was awarded the scholarship, Rado and his wife left for the UK in 1933. He was appointed Professor of Mathematics at the University of Reading in 1954 and remained there until he retired in 1971.

Ernest Julius Walter Simon, (10 June 1893 – 22 February 1981) was a German sinologist and librarian.

Max Lewandowsky (28 June 1876 – 4 April 1916) was a German neurologist, who was a native of Berlin, born into a Jewish family.

Friedrich von Rabenau (10 October 1884 – 15 April 1945) was a German career-soldier, general, theologian, and opponent of National Socialism.

James Lewin (Russian: Джемс Натанович Левин, romanized: Dzhems Natanovich Levin; 28 October 1887 in Berlin – 31 December 1937 in Chelyabinsk, USSR) was a German-Jewish psychiatrist and physician.

Erwin Anton Gutkind (20 May 1886, Berlin – 7 August 1968, Philadelphia), was a German-Jewish architect and city planner, who left Berlin in 1935 for Paris, London and then Philadelphia, where he became a member of the faculty of the University of Pennsylvania. Of his work in Germany, all but one building remains and as of 2013 most if not all have historical protection orders on them. Some of them have also been restored.

Captain Robert C. Truax (USN) (September 3, 1917 – September 17, 2010) was an American rocket engineer in the United States Navy, and companies such as Aerojet and Truax Engineering, which he founded. Truax was a proponent of low-cost rocket engine and vehicle designs.