- 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 al-qadīmah fī ithbāt al-wājib1
- Dawwānī, Muḥammad ibn Asʻad, 1426 or 1427-1512 or 1513. Risālat ithbāt al-wājib (al-qadīmah)1
- Dawwānī, Muḥammad ibn Asʻad, 1426 or 1427-1512 or 1513. Zawrāʼ1
- Daylamites1
- Dayrūṭī, Muḥammad ibn Aḥmad, -1515 or 1516. Qaṣīdah al-Dimyāṭīyah1
- De anima (Aristotle)1
- De caelo (Aristotle)1
- De generatione et corruptione (Aristotle)1
- De pulsibus libellus ad tirones (Galen)1
- Decorated edges1
- Deep space--Sirius1
- Devotional literature1
- Dhimmis (Islamic law)1
- Diacritics1
- Diseases1
- Divination--Religious aspects--Islam1
- Dragons1
- Dreams--Religious aspects--Islam1
- Druzes1