All Authors
| Author | Born on | Died |
|---|---|---|
| Okky Madasari | October 30, 1984 | - |
| Oksana Baiul | November 16, 1977 | - |
| Olafur Eliasson | 1967 | - |
| Olav Thon | June 29, 1923 | - |
| Oleg Cassini | April 11, 1913 | March 17, 2006 |
| Oleg Deripaska | January 2, 1968 | - |
| Oleg Kulik | 1961 | - |
| Olesya Rulin | March 17, 1986 | - |
| Olga Korbut | May 16, 1955 | - |
| Olga Kurylenko | November 14, 1979 | - |
| Olin Miller | - | - |
| Olive Schreiner | March 24, 1855 | December 11, 1920 |
| Oliver Cromwell | April 25, 1599 | September 3, 1658 |
| Oliver E. Williamson | September 27, 1932 | - |
| Oliver Ellsworth | April 29, 1745 | November 26, 1807 |
| Oliver Evans | September 13, 1755 | April 15, 1819 |
| Oliver Goldsmith | November 10, 1730 | April 4, 1774 |
| Oliver Hardy | January 18, 1892 | August 7, 1957 |
| Oliver Herford | 1863 | 1935 |
| Oliver Hudson | September 7, 1976 | - |