See also: Ewald (disambiguation) and Friedländer (disambiguation). Osk(c)ar Ewald, born Oskar Friedländer, or Friedländer Oszkár (11 November 1881, Búrszentgyörgy/Sankt Georgen, Hungary (now Borský Svätý Jur, Senica District, Slovakia) – 25 September 1940, near Oxford, Oxfordshire) was a Hungarian-Austrian philosopher.
His father was Moritz Friedländer, a liberal scholar of Judaism who worked with the Jewish community of the Kingdom of Hungary on matters including the expansion of education.
Beginning in 1901, Ewald was a member of a group of young intellectuals in Vienna, German: "Die Männer der Zukunft". In addition to Ewald, this group included Otto Weininger, Arthur Gerber,,, and .[1]
Ewald converted to Protestantism and changed his last name to Ewald.