Authors Born on March 18
- Adam Levine Actor, 1979
- Adam Pally Film Actor, 1982
- Alexei Yagudin Figure Skater, 1980
- Allen Leech Actor, 1981
- Andrew Ford Composer, 1957
- Andrew McCabe Attorney At Law, 1968
- Andy Granatelli Businessman, 1923
- Anna Hempstead Branch Poet, 1875
- Arundhati Bhattacharya Banker, 1956
- Beth Gutcheon Writer, 1945
- Bill Frisell Guitarist, 1951
- Bob Whitlock Musician, 1948
- Bonnie Blair Skater, 1964
- Brad Dourif Actor, 1950
- Brantt Myhres Ice Hockey Player, 1974
- Brian Griese Football Player, 1975
- Bruce Baum Comedian, 1951
- Carl R. Trueman Theologian, 1967
- Charley Pride Singer, 1934
- Chief White Eagle Actor, 1917
- Chris Geere Actor, 1981
- Ciara Bravo Actress, 1997
- Cindy Busby Actress, 1983
- Dane Cook Voice Actor, 1972
- Danneel Ackles Actress, 1979
- David Deida Author, 1958
- David Potts Chief Executive Officer, 1957
- Declan Lowney Television Director, 1960
- Edgar Cayce Psychic, 1877
- Edgar Friedenberg Scholar, 1921
- Edward Conze Scholar, 1904
- Eikoh Hosoe Photographer, 1933
- Eric Woolfson Songwriter, 1945
- Ernest Gallo Businessman, 1909
- F. W. de Klerk Politician, 1936
- Fabian Cancellara Athlete, 1981
- Francis G. Slay Politician, 1955
- Franz Wright Poet, 1953
- G. E. M. Anscombe Philosopher, 1919
- Galeazzo Ciano Diplomat, 1903