| Link | Location |
|---|---|
| Kai Oshima | Tokyo, Giappone |
| Pavel Osin | Moscow, Russia |
| Ilona Osińska | Warszawa, Polonia |
| Kamil Osiński | Warszawa, Polonia |
| Miłosz Osiński | Warszawa, Polonia |
| Ezgi Osmanoglu | Munich, Germania |
| Paweł Osmólski | Kraków, Polonia |
| Ivie Osobase | Live online from Sydney, Australia |
| Edgardo Osorio González | Santiago, Cile |
| Magdalena Ostalska | Warszawa, Polonia |
| Alena Ostanina | Astana, Kazakistan |
| Devin Osterhout | Salt Lake City, Utah, Stati Uniti |
| Amanda Österling | Warsaw, Polonia |
| Aleksandr Ostroukhov | Saint-Petersburg, Russia |
| Andrzej Ostrowski | Wrocław, Polonia |
