| Link | Location | |
|---|---|---|
 | Alex Ortner | London, Reino Unido |
 | Markus Ortner | Nürnberg, Alemania |
| Henrik P Orvin | Gråsten, Dinamarca |
| Ron Osawa | Hong Kong, Hong Kong |
| Ikenna Osayi | Berlin, Alemania |
| James Osborn | London, Reino Unido |
| Petrucci Oscar | Milan, Italia |
 | Konstantins Oševerovs | Riga, Letonia |
| Taito Oshima | Tokyo, Japón |
 | Kenji Oshio | Tokyo, Japón |
| Siarhei Oshyn | Minsk, Bielorrusia |
| Piotr Osinski | Munich, Alemania |
 | Inga Osovsky | New York, New York, Estados Unidos |
| Martin Osovsky | Prague, Chequia |
 | Josip Osrečki | Zagreb, Croacia |
