Daddy-O may refer to:
Daddy-O (film) is a 1958 B-movie starring Dick Contino Daddy-O Daylie, a radio personality in the 1940s, 1950s and 1960s Daddy-O (rapper), rapper and hip hop producer "Daddy-O", a 1955 song and 1958 album by Bonnie Lou "Daddy-O", a 2008 song by Wideboys Bob "Daddy-O" Wade, American artist associated with the Cosmic Cowboy culture of Texas Daddy-O, slang usually used to address a person that became popular in the 1950's and 1960's
See also Daddy O, Baby O!, a 2000 Filipino film