Harriet Adams (born Harriet Stratemeyer, pseudonyms Carolyn Keene and Franklin W. Dixon) (1893 - 1982), U.S. juvenile mystery novelist and publisher; wrote Nancy Drew and Hardy Boys books. She was the daughter of Edward Stratemeyer and, with her sister, took over control of the Stratemeyer Syndicate upon his death. This syndicate owned many popular titles, including Nancy Drew and the Hardy Boys.
Even though the syndicate employed many ghostwriters, Adams wrote several of the Hardy Boys and the majority of the Nancy Drew volumes.