Authors Born on July 20
- Richard Owen Biologist, 1804
- Roberto Orci Screenwriter, 1973
- Sandra Oh Actress, 1971
- Stephen Strasburg Athlete, 1988
- Steven Adams Basketball Player, 1993
- Stone Gossard Musician, 1966
- Tim Ferriss Author, 1977
- Tobi Vail Musician, 1969
- Wayne Allyn Root Politician, 1961
- Wiley Blount Rutledge Educator, 1894