- Bèze, Théodore de, 1519-16051
- Béla IV, King of Hungary, 1206-12701
- Bābā Afz̤al, active 13th century. Jāvidānʹnāmah1
- Bāfaḍl al-ḥaḍramī, ʻAbd Allāh ibn ʻAbd al-Raḥmān, 1446 or 7-1512 or 13. Mukhtaṣar al-fiqh1
- Bāʻūnīyah, ʻĀʼishah bint Yūsuf, -1516 or 1517. Fatḥ al-mubīn fī madḥ al-Amīn1
- Bēssariōn, Cardinal, 1403-14721
- Būnī, Aḥmad ibn ʻAlī, -12251
- Būṣīrī, Sharaf al-Dīn Muḥammad ibn Saʻīd, 1213?-1296? Hamzīyah fī madḥ Khayr al-Barīyah1
- Būṣīrī, Sharaf al-Dīn Muḥammad ibn Saʿīd, 1213?-1296? Hamzīyah fī madḥ Khayr al-Barīyah1
- Bṛhaspati (Hindu deity)1
- Cabala and Christianity1
- Cacciaguerra, Renaldus1
- Caesarius, of Arles, Saint, 470?-5421
- Cafsuto, Moisè Vita, active 18th century1
- Cakchikel language1
- Cakchikel language--Grammar1
- Calandra, Paolo del1
- Calendar reform1
- Calendar, Batak1
- Calendar, Gregorian1