- Cartner, Holly1
- Central European University1
- Centrum Promocji Kobiet (Warsaw, Poland)1
- Charbol, Claude1
- Charuel, Marc1
- Chopard, Jean-Luc1
- Chuev, Feliks Ivanovich1
- Chwin, Stefan1
- Cichy, Edward1
- Clapham, Andrew1
- Constitutional and Legal Policy Institute at OSI-Budapest1
- Corell, Hans1
- Costello, John1
- Crow, Suzanne1
- Czechoslovak Unit1
- Dall, Frank1
- Danner, Mark1
- David Rohde1
- Democratic Charta1
- Demszky, Gábor1