Rudolf Carnap was a German-language philosopher who was active in Europe before 1935 and in the United States thereafter. He was a major member of the Vienna Circle and an advocate of logical positivism. He is considered "one of the giants among twentieth-century philosophers."
Rudolf Christoph Eucken was a German philosopher. He received the 1908 Nobel Prize in Literature "in recognition of his earnest search for truth, his penetrating power of thought, his wide range of vision, and the warmth and strength in presentation with which in his numerous works he has vindicated and developed an idealistic philosophy of life", after he had been nominated by a member of the Swedish Academy.
Rudolf Erich Raspe was a German librarian, writer, and scientist, called by his biographer John Patrick Carswell a "rogue". He is best known for his collection of tall tales The Surprising Adventures of Baron Munchausen, also known as Baron Munchausen's Narrative of his Marvellous Travels and Campaigns in Russia, originally a satirical work with political aims.
Rudolf Greinz (August 16, 1866 – August 16, 1942) was an Austrian writer. He was born as the eldest of five children of Anton Greinz and his wife Maria (née Kapferer). His younger brothers Hugo (1873–1946) and Hermann (1879–1938) were also writers. In 1879 the family moved to Salzburg; his father had been transferred there.
Rudolf Hans Bartsch (born 11 February 1873 in Graz, Styria – died 7 February 1952 in St. Peter in Graz), was an Austrian military officer, and writer. He was nominated for the Nobel Prize in Literature six times.
Rudolf Hercher was a German classical philologist, who worked as a Grammar school teacher in Rudolstadt (1847–1859) and Berlin (1861–1878). He is especially known for his textual criticism of diverse Greek authors.
Rudolf Hilferding was an Austrian-born Marxist economist, socialist theorist, politician and the chief theoretician for the Social Democratic Party of Germany (SPD) during the Weimar Republic, being almost universally recognized as the SPD's foremost theoretician of this century. He was also a physician.
Rudolf Hirzel was a German classical scholar, and author of a number of major books on Greek law, oaths, dialogues and names.
In Jena Rudolf Hirzel lived in the same house as Gottlob Frege and it has been conjectured that his studies in ancient logic may have influenced him.
