Ernest Samuels (May 19, 1903 – February 12, 1996) was an American biographer and lawyer.
Born in Chicago, he received his J.D. in 1926, but switched to literature in 1930. Nevertheless he did legal work as well for much of the 1930s. He might be best known for his biography of Henry Adams in three volumes. For this work he received the Bancroft Prize and the Pulitzer Prize for Biography or Autobiography His two-volume biography Bernard Berenson: The Making of a Connoisseur (Cambridge, MA 1979); Bernard Berenson: The Making of a Legend (Cambridge, MA 1987) is considered the most well-researched and important study of its subject. He died in Evanston, IL.