Former Owner
- Bristol Baptist College1
- Bruce Bannerman1
- Bruce P. Ferrini13
- Brudenell family2
- Brunori Cadamosto1
- Budapest University of Jewish Studies1
- Burg Kreuzenstein1
- Burgersdijk & Niermans1
- Burndy Library4
- Bury St Edmunds Abbey3
- Buxheim Charterhouse11
- Byron Reed1
- Bākīr ibn Muṣṭafá Fūṭī1
- Bālambhaṭṭamuni1
- Bāpaṭa Kṛṣṇabhaṭa1
- Bīkānera Anūpa Saṃskr̥ta Pustakālaya1
- Būtū ʻAbd al-Bāqī1
- C Traylen Bookshop1
- C. Bruscoli1
- C. Duca Visconti Modrone1