Malcolm Jameson (1891–1945) was an American science fiction author. An officer in the US Navy, he was active in American pulp magazines during the Golden Age of Science Fiction. His story "Doubled and Redoubled" may be the earliest work of fiction to feature a time loop. His stories of Solar System exploration about "Bullard of the Space Patrol" were posthumously collected in 1951 as a fixup novel and won the Boys Clubs of America Award.
