| Link | Location |
|---|
 | Oluseyi Ogundare | London, United Kingdom |
| MUNEYUKI OHIGASHI | Tokyo, Japan |
| Makiko Ohishi | Tokyo, Japan |
| Philip Ohlsson | Apeldoorn, Netherlands |
| Michitaka Ohno | Tokyo, Japan |
 | Shigenari Ohnuma | Tokyo, Japan |
| Toshiyuki Ohtomo | Kyoto, Japan |
| Thomas Oichtner | Vienna (Vösendorf), Austria |
| Sami Ojanpää | Seinäjoki, Finland |
| Chichi Okafor | Duluth, Georgia, United States |
 | Yuki Okamoto | Tokyo, Japan |
| Takaya Okano | Tokyo, Japan |
 | Jay Oke | London, United Kingdom |
| Alevtina Okhrimenko | Moscow, Russian Federation |
| Morten Okking-Dam Hansen | Copenhagen, Denmark |
