- Colton, Timothy J.1
- Constitutional and Legal Policy Institute at OSI-Budapest1
- Cooper, Abraham1
- Coover, Virginia1
- Corson, William R.1
- Council of Europe. Committee of Ministers1
- Crossley, Callie1
- Cywiński, Bohdan1
- Czechoslovak Unit1
- Da Graça, John V.1
- Dallin, Alexander1
- Dalos, György1
- Daniels, Robert Vincent1
- David Rohde1
- Davidenko, G.1
- De Sola, Ralph1
- De Weydenthal, Jan B.1
- DeVinney, James A.1
- Demszky, Gábor1
- Dietrich, Craig1