| Link | Location |
|---|
 | Małgorzata Ciesielska | Wrocław, Poland |
| Łukasz Cieśla | Rzeszów, Poland |
| Krzysztof Cieślik | Krakow, Poland |
 | Giuseppe Cilia | Milano, Italy |
| Frédéric CIMMA | Neuilly-sur-Seine, France |
| Małgorzata Ciślak | Warszawa, Poland |
| Dominika Ciszewska | Warsaw, Poland |
| Marcin Ciurla | Krakow, Poland |
| ckj@unik.dk | Vejle, Denmark |
| Beth Clapper | Eden Prairie, Minnesota, United States |
| Caitlin Clark | New York, New York, United States |
 | Jessica Clark | Berlin, Germany |
| Ane Clausen | Hellerup, Denmark |
 | Brian Clayton | La Grange Park, Illinois, United States |
| Danial Clements | Dublin, Ireland |
