| Link | Location |
|---|
| Yulia Openysheva | Moscow online, Russia |
| Robert-Jan Opschoor | Den Haag, Netherlands |
| Marta Orbitowska | Szczecin, Poland |
| Aleksander Oreshkov | Moscow, Russia |
| Inga Osovsky | New York, New York, United States |
| Alberto Osuji | Lagos, Nigeria |
| Gertjan Oude Vrielink | Rotterdam, Netherlands |
| Irina Ovcinicov | Warsaw, Poland |
| Bartłomiej Pachacz | Cracow, Poland |
| Marcel Paduch | Hong Kong, Hong Kong |
| Laura Pagan | Elgin, United States Minor Outlying Islands |
| Davide Paglialunga | Nice, France |
| Nuno Pais | Bonn, Germany |
| Bernhard Palme | Essen, Germany |
| Amanda Palovcsik | Madison, Wisconsin, United States |
