- Daṿid ben Yitsḥaḳ, ha-Leṿi. 11th century1
- De institutione musica (Boethius)1
- De mundo (Aristotle)1
- De partibus animalium (Aristotle)1
- Dead--Religious aspects--Hinduism1
- Death registers1
- Death--Religious aspects--Judaism1
- Declaration of intention1
- Depositions1
- Devotional calendars--Coptic Church1
- Devotional exercises1
- Devotional literature, French1
- Devotional literature, German1
- Di Leone, Francesco1
- Di Leone, Giovanni1
- Diarrhea1
- Didactic poetry, Latin (Medieval and modern)1
- Diocletian, Emperor of Rome, 245-3131
- Dionysius, the Areopagite, Saint, active 1st century1
- Disciples1