| Link | Location |
|---|
| Ivie Osobase | Live online from Sydney, Australia |
| Edgardo Osorio González | Santiago, Chile |
| Magdalena Ostalska | Warszawa, Poland |
| Alena Ostanina | Astana, Kazakhstan |
| Devin Osterhout | Salt Lake City, Utah, United States |
| Amanda Österling | Warsaw, Poland |
| Aleksandr Ostroukhov | Saint-Petersburg, Russian Federation |
| Andrzej Ostrowski | Wrocław, Poland |
| Alberto Osuji | Lagos, Nigeria |
| Joe Oswald | Columbus, Ohio, United States |
| Yuki Otsuka | Tokyo, Japan |
| VADIM OTTO | Moscow, Russian Federation |
| kazuki ouchi | Tokyo, Japan |
| Kenichiro Ouchi | Tokyo, Japan |
| Anita Owczarek | Wrocław, Poland |
