Academic staff of the Humboldt University of Berlin

Caesar Rudolf Boettger (20 May 1888 – 8 September 1976) was a German zoologist born in Frankfurt am Main. He specialized in malacology, particularly studying the land snails and slugs.
In 1912 he obtained his PhD from the University of Bonn, and in 1914 embarked on a scientific expedition to Africa and the Orient. During World War I, he was stationed in France and Turkey. In 1932 he became a private lecturer at the University of Berlin, where in 1938 he was appointed professor of zoology. In 1947 he became a professor of zoology at Braunschweig University of Technology, where he established a museum of natural history.
After retirement in 1956, he undertook five research trips to North America (including Mexico and Hawaii). In 1965 he was visiting curator at the University of Michigan and in 1967/68 took part in a research project of the Naval Medical Field Research Laboratory in North Carolina. Boettger has over a dozen species named after him, as well as a gastropod genus:
Boettgerilla Simroth, 1910.Caesar Boettger is commemorated in the scientific name of a species of lizard, Gallotia caesaris.
He was a nephew of German herpetologist Oskar Boettger.

Paul Maas (18 November 1880, in Frankfurt am Main – 15 July 1964, in Oxford) was a German scholar who, along with Karl Lachmann, founded the field of textual criticism.He studied classical philology at the universities of Berlin and Munich, receiving his doctorate in 1903. In 1910 he obtained his habilitation and in 1920 became a full professor at Berlin. In 1930 he was appointed chair of classical philology at the University of Königsberg. In 1934 he was forced into retirement by the Nazi government due to his Jewish ancestry, and in 1939 he emigrated to Great Britain, where he taught classes at Oxford University. After his death, he was buried at Wolvercote Cemetery's Jewish section in Oxford.

Hermann Dessau (6 April 1856, Frankfurt am Main – 12 April 1931, Berlin) was a German ancient historian and epigrapher. He is noted for a key work of textual criticism published in 1889 on the Historia Augusta, which uncovered reasons to believe that this surviving text of ancient Roman imperial history had been written under circumstances very different from those previously believed.
He studied at the University of Berlin as a pupil of Theodor Mommsen, receiving his doctorate in 1877 from the University of Strasbourg. On behalf of the Corpus Inscriptionum Latinarum (CIL) he travelled to Italy and North Africa. In 1884 he was habilitated as a historian in Berlin, where he subsequently became an associate honorary professor (1912) and full honorary professor (1917). From 1900 to 1922 he served as a scientific officer for the Prussian Academy of Sciences.

Victor Klemperer (9 October 1881 – 11 February 1960) was a German scholar who also became known as a diarist. His journals, published in Germany in 1995, detailed his life under the German Empire, the Weimar Republic, the Third Reich, and the German Democratic Republic.
The three volumes of his diaries have been published in English translations: I Shall Bear Witness, To the Bitter End, and The Lesser Evil. The first two cover the period of the Third Reich have since become standard sources and have been extensively quoted. His book Lingua Tertii Imperii, published in English as The Language of the Third Reich, studies how Nazi propaganda manipulated and influenced the German language.

Paul Trendelenburg (24 March 1884, Bonn – 4 February 1931, Berlin) was a German pharmacologist.
He studied medicine at the universities of Grenoble, Leipzig and Freiburg, where from 1909 to 1918, he worked as an assistant in the pharmacological institute and at the surgical clinic. In 1912 he received his habilitation in pharmacology and toxicology, and from 1916 was an associate professor. In 1919 he became a full professor at the University of Rostock and later on, he served as a professor of pharmacology at the universities of Freiburg (from 1923) and Berlin (from 1927).He is known for his research of adrenaline, for the development of biological measurement procedures for the standardization of hormone preparations and for his investigations regarding the role of the hypothalamic hormones vasopressin and oxytocin. His name is associated with the so-called "Trendelenburg preparation", a preparation used in determining the actions of pharmacological agents on peristalsis.He was the son of surgeon Friedrich Trendelenburg and the brother of physiologist Wilhelm Trendelenburg. His son, Ullrich Georg Trendelenburg, was also a pharmacologist.

Eduard Sonnenburg (3 November 1848, in Bremen – 25 May 1915, in Bad Wildungen) was a German surgeon. He was a son-in-law to neurologist Karl Friedrich Otto Westphal.
After receiving his medical doctorate in 1872, he spent several years as an assistant to Georg Albert Lücke at the surgical clinic in Strassburg. In 1876 he qualified as a lecturer of surgery at the university. In 1880 he relocated to Berlin, where he worked under Bernhard von Langenbeck and Ernst von Bergmann.In 1883 he became an associate professor at the University of Berlin, and in 1890 was appointed director of the surgical department at the Krankenhaus Moabit. In 1913 he became an honorary full professor at the university.In 1886, he was a founding member of the Freie Vereinigung der Chirurgen Berlins (Free Association of Berlin Surgeons), an organization known today as the Berliner Chirurgische Gesellschaft. His name is associated with "Sonnenberg's sign", an indicator defined as bloody leukocytosis seen in appendicitis with localized peritonitis. He standardized Appendectomy, i.e. the surgery removing the vermiform appendix and was invited to perform the surgery for many nobles and royalties in Europe.

Julius Ferdinand Ruska (9 February 1867, Bühl, Baden – 11 February 1949, Schramberg) was a German orientalist, historian of science and educator.
He was a critical scholar of alchemical literature, and of Islamic science, raising many issues on attributions and sources of the texts, and providing translations. The range of his studies was wide, including the Emerald Tablet, a basic hermetic text. From 1924 he headed an institute in Heidelberg, where he has been a student.
Of his seven children, Ernst Ruska and Helmut Ruska were distinguished in their fields.

Julius von Michel (5 July 1843 – 29 September 1911) was a German ophthalmologist born in Frankenthal.
He studied at the Universities of Würzburg and Zurich, and in 1866 served as a military physician in the Austro-Prussian War. From 1868 to 1870 he was an assistant to Johann Friedrich Horner (1831–1886) at the University Eye Clinic in Zurich. During the Franco-Prussian War (1870–71), he again served as a military doctor, and afterwards worked with Gustav Schwalbe (1844–1916) at Carl Ludwig's Physiological Institute in Leipzig.
In 1872 he earned his habilitation in Leipzig, and subsequently became an associate professor of ophthalmology at the University of Erlangen, where in 1874 he gained a full professorship. In 1879 he was named successor to Robert von Welz at the ophthalmology clinic in Würzburg, and later on, he was a replacement for Karl Ernst Theodor Schweigger at the University of Berlin (1900).
Michel is remembered for work involving tuberculosis of the eye, and his pioneer research of central retinal vein occlusion.Among his written efforts are Lehrbuch der Augenheilkunde (Textbook of ophthalmology, 1890) and Klinischer Leitfaden der Augenheilkunde (Guide to clinical ophthalmology). With Hermann Kuhnt (1850–1925), he founded the journal Zeitschrift für Augenheilkunde.

Georg Lockemann (17 October 1871, in Hollenstedt – 4 December 1959, in Hollenstedt) was a German chemist.

Friedrich Hermann Leuchs (8 August 1879 – 2 May 1945) was a German chemist.