- Bulgaria1
- Bulgaria--Plovdiv1
- Bulgaria--Sofia1
- Bulls, Papal1
- Buonamici, Giovanni Francesco1
- Burhānpūrī, Muḥammad ibn Faḍl Allāh, -1619 or 1620. Tuḥfah al-mursalah ilá al-Nabī1
- Bushido1
- Bāb al-Ḥādī ʻashar (Ibn al-Muṭahhar al-Ḥillī, al-Ḥasan ibn Yūsuf)1
- Bālisī, Abū Bakr ibn Qiwām, -12601
- Bāʻūnīyah, ʻĀʼishah bint Yūsuf, -1516 or 1517. Badīʻīyah1
- Bāʻūnīyah, ʻĀʼishah bint Yūsuf, -1516 or 1517. Fatḥ al-mubīn fī madḥ al-Amīn1
- Būnī, Aḥmad ibn ʻAlī, -12251
- Būstān (Saʻdī)1
- Būṣīrī, Sharaf al-Dīn Muḥammad ibn Saʻīd, 1213?-1296? Hamzīyah fī madḥ Khayr al-Barīyah1
- Cabala and Christianity1
- Caesar, Julius1
- Cairo Genizah1
- Calendar, Chinese1
- Calera, Rodrigo1
- Caliphate1