Authors Born on May 21
- Joseph Parry Composer, 1841
- Josh Allen American Football Player, 1996
- Judge Reinhold Actor, 1957
- Kathleen Wynne Politician, 1953
- Kevin Talley Drummer, 1978
- Lemn Sissay Author, 1967
- Leo Sayer Singer-Songwriter, 1948
- Leon Bourgeois Statesman, 1851
- Lisa Edelstein Actress, 1966
- Loretta Lynch Lawyer, 1959
- Malcolm Fraser Politician, 1930
- Marc Ribot Guitarist, 1954
- Maria Semple Novelist, 1964
- Mario Mandzukic Football Player, 1986
- Mohanlal Viswanathan Actor, 1960
- Mr. T Actor, 1952
- Nadine Dorries Politician, 1957
- Naeem Khan Fashion Designer, 1958
- Nick Cassavetes Actor, 1959
- Noel Fielding Comedian, 1973
- Pam Farrel Author, 1959
- Paul J. Meyer Businessman, 1928
- Raymond Burr Actor, 1917
- Ricardo Alarcon Politician, 1937
- Ricky Williams American Football Player, 1977
- Ronald Isley Vocalist, 1941
- Taylor Sheridan Actor, 1970
- The Notorious B.I.G. Rapper, 1972
- Tyrone Walker Rapper, 1990
- Walter M. Fitch Researcher, 1929
- Walter Wink Biblical Scholar, 1935
- Will Hutton Economist, 1950
- William Cameron Forbes Investment Banker, 1870