|Born||28 November 1889|
Parchim, Grand Duchy of Mecklenburg-Schwerin, German Empire
|Died||5 February 1964|
New York City
|Occupation||Professor, literary historian, literary critic, editor, biographer|
Rudolf Kayser studied literature and received his doctorate with a thesis on Arnim and Brentano. As a young lecturer at the Berlin Lessing University he made his debut in 1918 with the essay The Intellectuals and the Spiritual. In 1919 he became editor for the publisher S. Fischer in Berlin, and from 1922 to 1933 he was senior editor of the Neue Rundschau. Erwin Piscator brought Kayser to the Volksbühne Berlin as dramaturgical advisor in the mid-1920s . In 1930 Kayser wrote a biography of his father-in-law, Albert Einstein, under the pseudonym "Anton Reiser".
Rudolf Kayser was married to Ilse (1897–1934), the stepdaughter of Albert Einstein. In 1935 he emigrated to New York and became professor of German and European literature at Brandeis University. In 1936, he married Eva Urgiss, daughter of German screenwriter and film critic Julius Urgiß.
His estate is kept in the Israel National Library.
- Renate Heuer (Hrsg.): Lexikon deutsch-jüdischer Autoren / Archiv Bibliographia Judaica. Band 13: Jaco – Kerr. K. G. Saur, München u. a. 2005, ISBN 3-598-22693-4, S. 323–332.
- Wolfgang Kaelcke: Parchimer Persönlichkeiten. Teil 2, (= Schriftenreihe des Museums der Stadt Parchim. Heft 5). Museum der Stadt, Parchim 1997, This article incorporates text from a publication now in the public domain: "Rudolf Kayser". Dictionary of National Biography. London: Smith, Elder & Co. 1885–1900.
- Literature by and about Rudolf Kayser in the German National Library catalogue
- A Late Expressionist-Literary Critic-Literary Scholar: The Estate of Rudolf Kayser at the National Library of Israel