- Corsini, Bartolomeo1
- Cortesi, Girolamo1
- Cosimo II, Grand Duke of Tuscany, 1590-16211
- Cosimo III, Grand-Duke of Tuscany, 1642-17231
- Cosmography1
- Courts and courtiers1
- Cryptography1
- Dafrī, ʻUmar ibn ʻUmar, d. 1668. Durrah al-munīfah fī fiqh Abī Ḥanīfah1
- Dalālat al-ḥāʼirīn (Maimonides, Moses)1
- Dawwānī, Muḥammad ibn Asʻad, 1426 or 1427-1512 or 1513. Risālah qadīmah li-ithbāt al-wājib1
- Death and burial of a person1
- Debt1
- Deccani painting1
- Dervishes1
- Devil--Islam1
- Dhimmis (Islamic law)1
- Didactic poetry, Arabic1
- Divination1
- Divination--Religious aspects--Islam1
- Dowry1