- Cyprus1
- Cyprus--Paphos (District)1
- Cyropaedia (Xenophon)1
- Cyrus, the Great, King of Persia, -530 B.C. or 529 B.C.1
- Czech (culture or style)1
- Czech Republic--Bohemia1
- Cáceres Gatica, Alonso de1
- Davanzati, Francesco1
- Dawlatābādī, Aḥmad ibn ʻUmar, d. 1445 or 6. Sharḥ al-Kāfiyah1
- De interpretatione (Aristotle)1
- Death1
- Della Rovere, Francesco Maria, duca d'Urbino, 1548-16311
- Descripción de las Indias Occidentales (Herrera y Tordesillas, Antonio de)1
- Despotism1
- Detti, Giovanni Baptista1
- Di Giovanni, Francesco1
- Didactic literature, German1
- Discoveries in geography1
- Dispensations1
- Dispute resolution (Law)1