Authors Born on July 21
- Adam Rubin Author, 1983
- Alfred Lansing Journalist, 1921
- Ali Landry Model, 1973
- Alysia Reiner Actress, 1970
- Anthony Santos Vocalist, 1981
- Arija Bareikis Actress, 1966
- Aron Bielski Activist, 1927
- Arthur Marx Author, 1921
- Barry Richards Cricketer, 1945
- Betty Gilpin Actress, 1986
- Blake Lewis Singer-Songwriter, 1981
- Brandi Chastain Football Player, 1968
- Brandon Heath Knell Musician, 1978
- Buchi Emecheta Novelist, 1944
- Cat Stevens Singer, 1948
- Catherine Ndereba Athlete, 1972
- CC Sabathia Baseball Player, 1980
- Charlotte Gainsbourg Actress, 1971
- Chris Stokes Manager, 1969
- Claire Williams Deputy, 1976
- Claudia Brant Composer, 1966
- Damian Marley Singer, 1978
- Dan Malloy Politician, 1955
- Dannel Malloy Politician, 1955
- David Dastmalchian Actor, 1977
- David Ervine Politician, 1953
- David Hurn Photographer, 1934
- David Maister Writer, 1947
- DeAndre Jordan Basketball Player, 1988
- Don Knotts Actor, 1924
- Ed Greenwood Writer, 1959
- Edward Herrmann Actor, 1943
- Erling Haaland Football Player, 2000
- Ernest Hemingway Novelist, 1899
- Garry Trudeau Cartoonist, 1948
- Gene Fullmer Boxer, 1931
- Gene Littler Golfer, 1930
- Georgiana Burne-Jones Author, 1840
- Hart Crane Poet, 1899
- Isaac Stern Musician, 1920