George Klein
George Klein may refer to:

George Klein (inventor) (1904–1992), Canadian inventor
George Klein (comics) (c. 1915 or 1920 – 1969), American comic book artist
George Klein (biologist) (1925–2016), Hungarian-Swedish biologist and writer
George Klein (physician), Canadian cardiologist 
George Klein (DJ) (1935–2019), disc jockey and television host
George Klein (Canadian football) (1932–? ), Canadian football player
George S. Klein (1917–1971), American psychologist and psychoanalyst
Adam Klein (swimmer) (George Klein IV, born 1988), American swimmer

See also
Georg Klein (disambiguation)
George Klyne (1828–1875), Member of the Legislative Assembly of Manitoba
George Kline (1921–2014), American philosopher, Russian scholar and academic