Authors Born on December 9
- Emmett Kelly Entertainer, 1898
- Ernest Gellner Philosopher, 1925
- Esther Peterson Advocate, 1906
- Felicity Huffman Television Actor, 1962
- Frank Edwin Musician, 1972
- Fritz Haber Chemist, 1868
- G. Campbell Morgan Evangelist, 1863
- Gaston Gaudio Tennis Player, 1978
- George H. Brimhall President, 1852
- I. J. Good Mathematician, 1916
- Imogen Heap Singer-Songwriter, 1977
- Isabelle Kocher Businesswoman, 1966
- Jakob Dylan Singer-Songwriter, 1969
- Jean-Claude Juncker Politician, 1954
- Jesse Metcalfe Actor, 1978
- Joan Armatrading Singer-Songwriter, 1950
- Joanna Trollope Writer, 1943
- Joe Kelley Baseball Player, 1871
- Joe Lando Actor, 1961
- Joel Chandler Harris Journalist, 1848
- John Cassavetes Film Actor, 1929
- John Malkovich Actor, 1953
- John Milton Poet, 1608
- Jolene Purdy Actress, 1983
- Joseph Needham Biochemist, 1900
- Joseph Pilates Teacher, 1883
- Joshua Bell Violinist, 1967
- Joshua Sasse Actor, 1987
- Judi Dench Actress, 1934
- Kara DioGuardi Musician, 1970
- Kelli Berglund Actress, 1996
- Kevin Daniels Actor, 1976
- Kirk Douglas Actor, 1916
- Kirsten Gillibrand Politician, 1966
- Kurt Angle Actor, 1968
- Libby Houston Poet, 1941
- Lori Greiner Inventor, 1969
- Louis Kronenberger Literary Critic, 1904
- Mario Cantone Comedian, 1959
- Mary Fallin Politician, 1954