- Commercial law (Islamic law)1
- Compass1
- Compasses (Mathematical instruments)1
- Compromise (Islamic law)1
- Concordances1
- Conduct of life1
- Conic sections1
- Contracts1
- Conversion--Islam1
- Copts1
- Corporation law (Islamic law)1
- Correspondence1
- Cosmology, Ancient1
- Cyprus1
- Dafrī, ʻUmar ibn ʻUmar, d. 1668. Durrah al-munīfah fī fiqh Abī Ḥanīfah1
- Damages (Islamic law)1
- Damanhūrī, Aḥmad ibn ʻAbd al-Munʻim1
- Damanhūrī, Muḥammad, -1871 or 1872. Irshād al-shāfī ʻalá matn al-Kāfī fī ʻilmay al-ʻarūḍ wa-al-qawāfī1
- Dawwānī, Muḥammad ibn Asʻad, 1426 or 1427-1512 or 1513. Risālah al-jadīdah fī ithbāt al-wājib1
- Dawwānī, Muḥammad ibn Asʻad, 1426 or 1427-1512 or 1513. Risālah qadīmah li-ithbāt al-wājib1