- Buondelmonte, Piero1
- Buondelmonti, Giovanni de'1
- Buralis, Jacopo de1
- Burdah (Būṣīrī, Sharaf al-Dīn Muḥammad ibn Saʻīd)11
- Burelli, Bruno1
- Burhān al-Sharīʻah, Maḥmūd ibn ʻUbayd Allāh, -1274 or 1275. Wiqāyat al-riwāyah10
- Burhān al-Sharīʻah, Maḥmūd ibn ʻUbayd Allāh, d. 1274 or 5. Wiqāyat al-riwāyah4
- Burial1
- Burial laws (Jewish law)2
- Burlaeus, Gualterus, 1275-1345?1
- Burlesques1
- Burma2
- Busdraghi, Matteo, 14th century1
- Busdraghi, Nicola, 14th century1
- Busdraghi, Piero, 14th century1
- Business ethics1
- Business mathematics2
- Business records2
- Byzantine Empire4
- Byzantine chants2