- Cyropaedia (Xenophon)1
- Cyrus, the Great, King of Persia, -530 B.C. or 529 B.C.1
- Darius I, King of Persia, 548 B.C.-485 B.C.1
- De gradibus humilitatis et superbiae (Bernard, of Clairvaux, Saint)1
- De interpretatione (Aristotle)1
- Death and burial of a person1
- Death--Religious aspects--Islam1
- Debts, External1
- Deccani painting1
- Decorated paper bindings1
- Decretales Gregorii IX (Catholic Church)1
- Della Rovere, Francesco Maria, duca d'Urbino, 1548-16311
- Demosthenes1
- Descripción de las Indias Occidentales (Herrera y Tordesillas, Antonio de)1
- Devotional calendars1
- Devotional calendars--Catholic Church1
- Devotional poetry, Arabic1
- Dhimmis (Islamic law)1
- Diet1
- Dion, approximately 408 B.C.-354 B.C.1