- Devotion to the Blessed Virgin Mary1
- Devotional calendars1
- Devotional exercises1
- Devotional literature, French1
- Devotional literature, German1
- Devotional literature, Latin (Medieval and modern)1
- Devotional poetry, Arabic1
- Dhimmis (Islamic law)1
- Di Donato, Francesco1
- Di Giovanni family1
- Di Leone, Francesco1
- Di Leone, Giovanni1
- Di Meo, Antonio, 1947-1
- Di Pietro, Giovanni1
- Di Stefano, Antonio1
- Dialogi (Gregory I, Pope)1
- Diced leather bindings1
- Dictators as authors1
- Didactic literature, English (Middle)1
- Didactic poetry, Latin (Medieval and modern)1