- Contracts (Islamic law)1
- Controlled vocabularies1
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- Coptic Christian saints1
- Coptic Church. Katameros1
- Copts1
- Correspondence1
- Creeds1
- Dafrī, ʻUmar ibn ʻUmar, d. 1668. Durrah al-munīfah fī fiqh Abī ḥanīfah1
- Damanhūrī, Aḥmad ibn ʻAbd al-Munʻim1
- Daniel (Biblical figure)1
- Dawlatābādī, Aḥmad ibn ʻUmar, d. 1445 or 6. Sharḥ al-Kāfiyah1
- Dawwānī, Muḥammad ibn Asʻad, 1426 or 1427-1512 or 1513. Ḥāshīyah al-qadīmah al-Jalālīyah1
- Devotional calendars--Coptic Church1
- Dimashqī, ʻAbd al-Laṭīf ibn Aḥmad. Nukhbat al-tuffāḥah ḥāwiyat qawāʻid al-misāḥah1
- Divination--Religious aspects1
- Dogs1
- Dogs--Religious aspects--Islam1
- Druzes1
- Dunquzī, Abd Allāh, 17th cent. Bināʼ al-afʻāl1