| Link | Location | |
|---|---|---|
 | Elena Ogneva | Minsk, Belarus |
| Djordje Ognjenovic | Novi Sad, Serbia |
| George Ogrezeanu | Munich, Germany |
| Oluseyi Ogundare | London, United Kingdom |
| MUNEYUKI OHIGASHI | 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 |
 | Yuki Okamoto | Tokyo, Japan |
| Takaya Okano | Tokyo, Japan |
 | Jay Oke | London, United Kingdom |
| Alevtina Okhrimenko | Moscow, Russian Federation |
