Warren Harmon Lewis

Warren Harmon Lewis
Born	(1870-06-17)June 17, 1870 Suffield, Connecticut
Died	July 3, 1964(1964-07-03) (aged 94) Philadelphia, Pennsylvania
Nationality	American
Alma mater	Johns Hopkins University (M.D. 1900) University of Michigan (B.A., 1894)
Spouse(s)	Margaret Reed Lewis
Scientific career
Fields	Biology
Institutions	Johns Hopkins University Carnegie Institution of Washington Wistar Institute

Warren Harmon Lewis (June 17, 1870 - July 3, 1964) was an American embryologist and cell biologist. He was an elected member of the National Academy of Sciences and the American Philosophical Society. He served as president of the American Association of Anatomists and the International Society for Experimental Cytology, and held honorary memberships in the Royal Microscopical Society in London and Accademia Nazionale dei Lincei in Rome.