- Didactic poetry, Latin (Medieval and modern)1
- Diet1
- Digesta1
- Diggele, Robert, active 1364-13741
- Dimashqī, ʻAbd al-Laṭīf ibn Aḥmad. Nukhbat al-tuffāḥah ḥāwiyat qawāʻid al-misāḥah1
- Dimyātī, Nūr al-Dīn. Qasam al-athná al-mabtahil bi-al-asmāʾ al-ḥusná1
- Dini, Antonio, 1969-1
- Dini, Donato1
- Dini, Francesco1
- Dini, Meo1
- Diocletian, Emperor of Rome, 245-3131
- Dion, approximately 408 B.C.-354 B.C.1
- Diplomacy1
- Diplomatic and consular service, Venetian1
- Diplomatic documents1
- Diplomatics, Persian1
- Diplomatics, Turkish1
- Diplomats1
- Disciples1
- Discoveries in geography--French1