Famous People Born on August 21
- King William IV (1765)
- Count Basie (1904)
- Friz Freleng (1905)
- Princess Margaret (1930)
- Arthur Bremer (1950)
- Steve Case (1958)
-
Carrie-Anne Moss (1967)
- Sergey Brin (1973)
-
Alicia Witt (1975)
-
Hayden Panettiere (1989)