| Link | Location |
|---|---|
| Elena Ogneva | Minsk, Belarus |
| Djordje Ognjenovic | Novi Sad, Serbia |
| Oluseyi Ogundare | London, United Kingdom |
| 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 |
| Darya Okhokhonina | Москва, Russia |
| Alevtina Okhrimenko | Moscow, Russia |
| Morten Okking-Dam Hansen | Copenhagen, Denmark |
| Joost Okkinga | Amsterdam, Netherlands |
