Gerold Frank (August 2, 1907 – September 17, 1998) was an American author and ghostwriter. He wrote several celebrity memoirs and was considered a pioneer of the "as told to" form of (auto)biography. His two best-known books, however, are The Boston Strangler (1966), which was adapted as the 1968 movie starring Tony Curtis and Henry Fonda, and An American Death (1972), about the assassination of Martin Luther King.