Former Owner
- Brinton, Daniel G. 1837-18991
- Bristol Baptist College1
- Bruce P. Ferrini4
- Brudenell family1
- Brunori Cadamosto1
- Budapest University of Jewish Studies1
- Burg Kreuzenstein1
- Burndy Library2
- Bury St Edmunds Abbey3
- Buxheim Charterhouse3
- Byron Reed1
- Bākīr ibn Muṣṭafá Fūṭī1
- Bālambhaṭṭamuni1
- Bāpaṭa Kṛṣṇabhaṭa1
- Bīkānera Anūpa Saṃskr̥ta Pustakālaya1
- C Traylen Bookshop1
- C. Bruscoli1
- C. Duca Visconti Modrone1
- C. W. S. Dixon1
- C.B1