Hattie Hart was an American Memphis blues singer and songwriter. She was active as a recording artist from the late 1920s to the mid-1930s. Her best known tracks are "I Let My Daddy Do That" and "Coldest Stuff in Town". She worked as a solo artist and as a singer with the Memphis Jug Band. Little is known of her life outside music.
It was stated that "Hart wrote gritty songs about love, sex, cocaine and voodoo".