| Link | Location | |
|---|---|---|
 | Mario Koren | Vienna, Austria |
| Daria Korenkova | Moscow, Russia |
| Aleksey Koretskiy | Colombo, Sri Lanka |
| Valentyna Korichyna | Toronto, Canada |
 | Roman Korman | Moscow, Russia |
| Joanna Kornacka | Łódź, Polonia |
| Todd Kornahrens | Haddon Heights, New Jersey, Stati Uniti |
| Stefan Körner | Munich, Germania |
| Eugene Korobka | Chicago, Illinois, Stati Uniti |
| Roman Korolenko | Москва (Online), Russia |
| Vitaliy Korolev | Moscow, Russia |
| Sylwia Korpok | Warszawa, Polonia |
| Andrei Korsak | Moscow, Russia |
| Asako Kosaka | Tokyo, Giappone |
| Oleksandr Kosenkov | Munich, Germania |
