 | O. Henry [ 1 ] : US short story author |
| Ogden Nash [ 8 ] : US humorist & poet |
| Olin Miller [ 1 ] |
| Oliver Cromwell [ 1 ] : English general & politician |
| Oliver Goldsmith [ 2 ] : British-Irish author |
| Oliver Wendell Holmes [ 14 ] : US author & physician |
| Oliver Wendell Jr. Holmes [ 7 ] : US jurist |
| Omar Bradley [ 1 ] : US general |
| Oprah Winfrey [ 32 ] : US actress & television talk show host |
| Oriental Proverb [ 1 ] |
| Orison Swett Marden [ 1 ] |
| Orson Welles [ 6 ] : US actor & director |
| Oscar Levant [ 11 ] |
| Oscar Wilde [ 75 ] : Irish dramatist, novelist, & poet |
| Oswald Spengler [ 2 ] : German historian & historical philosopher |
| Otto von Bismarck [ 3 ] : German Prussian politician |
| Ovid [ 17 ] : Roman poet |
| Author Index | ||||||
| A | B | C | D | E | F | G |
| H | I | J | K | L | M | N |
| O | P | Q | R | S | T | U |
| V | W | X | Y | Z | ||