Authors Born on August 18
- Ahad Ha'am Essayist, 1856
- Alain Robbe-Grillet Writer, 1922
- Alvin M. Johnston Pilot, 1914
- Amber Cope Racecar Driver, 1983
- Anatoly Kuznetsov Writer, 1929
- Andrew Wilkow Radio Dj, 1972
- Andy Samberg Actor, 1978
- Angela Cope Racecar Driver, 1983
- Anis Mansour Writer, 1925
- Anna Akana Actress, 1989
- Aphex Twin Musician, 1971
- Austan Goolsbee Economist, 1969
- Bart Scott Athlete, 1980
- Bill McDermott Businessman, 1961
- Blaize Clement Writer, 1932
- Bob Harper Coach, 1965
- Brian Aldiss Writer, 1925
- Brian Michael Bendis Writer, 1967
- Bryan Volpenhein Rower, 1976
- Burleigh Grimes Baseball Player, 1893
- Carole Bouquet Fashion Model, 1957
- Caspar Weinberger Politician, 1917
- Charles Francis Adams, Sr. Politician, 1807
- Choa Kok Sui Businesswoman, 1952
- Christian Slater Actor, 1969
- Craig Bierko Actor, 1964
- David Dewhurst Politician, 1945
- Denis Leary Actor, 1957
- Edward Boyden Scientist, 1979
- Edward Norton 1969
- Elayne Boosler Comedian, 1952
- Elizabeth Chambers Entrepreneur, 1982
- Elsa Morante Writer, 1912
- Erik Wemple Journalist, 1964
- Ernest Wood Yoga Master, 1883
- Everlast Musician, 1969
- Frances Bean Cobain Artist, 1992
- Francis John McConnell Bishop, 1871
- G-Dragon Singer, 1988
- Garry Kitchen Game Designer, 1955