The taxon authority Fernald may refer to:

  • Charles Henry Fernald (1838–1921), U.S. entomologist, husband of Maria Elizabeth Fernald, father of Henry Torsey Fernald
  • Henry Torsey Fernald (1866–1952), U.S. entomologist, son of Charles Henry and Maria Elizabeth Fernald
  • Maria Elizabeth Fernald (1839–1919), U.S. entomologist, wife of Charles Henry Fernald, mother of Henry Torsey Fernald
  • Merritt Lyndon Fernald (1873–1950, Fernald, outdated abbreviation: Fern.), U.S. botanist