Authors Born on May 18
- Jessica Cutler Blogger, 1978
- Jim Moginie Musician, 1956
- Joe Bonsall Singer, 1948
- John Bruton Politician, 1947
- John Higgins Snooker Player, 1975
- John Wilson Advocate, 1785
- Jonathan Maberry Author, 1958
- Joseph Butler Bishop, 1692
- Josephus Daniels Editor, 1862
- L. W. Sumner Philosopher, 1941
- Lionel Shriver Journalist, 1957
- Luisana Lopilato Actress, 1987
- Margot Fonteyn Ballet Dancer, 1919
- Mark Mothersbaugh Singer, 1950
- Mark Richardson Drummer, 1970
- Mathew Brady Photographer, 1822
- Matt Long Actor, 1980
- Matthew Yglesias Blogger, 1981
- Michael Cretu Musician, 1957
- Michael Tait Artist, 1966
- Miranda Leek Athlete, 1993
- Miriam Margolyes Actress, 1941
- Nathaniel Parker Actor, 1962
- Nicolas Gomez Davila Writer, 1913
- Nigel S. Wright Businessman, 1963
- Nikolai II Aleksandrovich Royalty, 1868
- Noam Bardin Chief Executive Officer, 1971
- Nora Raleigh Baskin Writer, 1961
- Norman St John-Stevas, Baron St John of Fawsley Politician, 1929
- Omar Khayyam Mathematician, 1048
- Page Hamilton Guitarist, 1960
- Perry Como Singer, 1912
- R. H. Barlow Author, 1918
- Reggie Jackson Baseball Player, 1946
- Rick Wakeman Keyboardist, 1949
- Sandra Ann Lauer Singer, 1962
- Sandra Cretu Singer, 1962
- Shunryu Suzuki Activist, 1904
- Terry Zwigoff Film Maker, 1949
- W. G. Sebald Writer, 1944