A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | Y | Z
| Phil Oates | Victor Obaika | Mike Ober | Dan Obrist |
| Tony Oddo | Homer O'Dell | Joe Bill O'Dell | Larry Odo |
| Jack Ogden | Don Oldenberg | Jack Oldenhage | Charles Oldham |
| Don Oliver | Jerry Oliver | Budd Olsen | Herb Onash |
| Heidi O'Neil | Jerry O'Neil | Darwin Oordt | Phil Orr |
| Bill Osborne | George Osborne | Lewis Osborne | Ray Osborne |
| Bob Osiecki | Rod Osterlund | Nelson Oswald | Omer Otte |
| Barry Owen | Kelly Owen | Cotton Owens |
