Authors Born on March 20
- A. J. Jacobs Writer, 1968
- Alex Kapranos Musician, 1972
- Alfonso Garcia Robles Politician, 1911
- Alfred Renyi Mathematician, 1921
- Alison Thompson Humanitarian, 1966
- Anne Bradstreet Poet, 1612
- B. F. Skinner Psychologist, 1904
- BeBe Zahara Benet Singer, 1981
- Benno C. Schmidt Jr. Businessman, 1942
- Bianca Lawson Actress, 1979
- Bill Eppridge Photographer, 1938
- Bobby Orr Ice Hockey Player, 1948
- Brian Mulroney Politician, 1939
- Bud Grant Coach, 1927
- Carl Frederick Kendall Palmer Drummer, 1950
- Carl Palmer Drummer, 1950
- Carl Reiner Actor, 1922
- Carl Webb Rugby Union Player, 1981
- Catherine Ashton Politician, 1956
- Cedric Yarbrough Comedian, 1973
- Charles William Eliot Public Servant, 1834
- Chester Bennington Singer-Songwriter, 1976
- Chicken John Musician, 1968
- Chilly Gonzales Musician, 1972
- Chris Wedge Film Director, 1957
- Christy Romano Actress, 1984
- Daniel Cormier Amateur Wrestler, 1979
- Danny Garcia Boxer, 1988
- David Lasser Writer, 1902
- David Malouf Writer, 1934
- David Thewlis Actor, 1963
- Dayna Devon Journalist, 1965
- Dean Geyer Singer-Songwriter, 1986
- Do Won Chang Businessman, 1954
- Douglas Tompkins Philanthropist, 1943
- Eddie Shaw Musician, 1937
- Ellis Arnall Politician, 1907
- Emily Giffin Author, 1972
- Ernest Bramah Author, 1868
- Erwin Neher Scientist, 1944