Former Owner
- Bertram Ashburnham, 4th Earl of Ashburnham40
- Bertram Ashburnham, 5th Earl of Ashburnham1
- Bertram Dobell2
- Bertrand de Chalençon1
- Bet din tsedeḳ London ṿeha-medinah3
- Betty Freudenheim1
- Beverly Chew4
- Bhacaṃbhat1
- Bhatta Narayana1
- Bhauruji, Pandit1
- Bhaṭṭaśivākānta Lakṣmīkānta1
- Bhaṭṭaṃbhaṭṭa1
- Bhālacandra Gaṇeśa1
- Biblioteca Bottigella1
- Biblioteca Trivulziana1
- Biblioteca civica di Verona1
- Biblioteca del Seminario Arcivescovile1
- Biblioteka Tulezynska1
- Bibliotheca Beggadorum1
- Bibliotheca Philosophica Hermetica1