Former Owner
- Bill Ward1
- Birch & Son1
- Birgittinessenklooster Mariënwater1
- Blenheim Palace1
- Bodleian Library1
- Boies Penrose1
- Bonaventura Brem1
- Boudewijn Willemszoon van Drenckwaert1
- Brahmānaṃdatīrtha1
- Branners Bibliofile Antikvariat1
- Breslauer and Meyer1
- Brian Douglas Stilwell1
- Brick Row Book Shop1
- Bridget Hunt1
- Bristol Baptist College1
- Brudenell family1
- Brunori Cadamosto1
- Budapest University of Jewish Studies1
- Burg Kreuzenstein1
- Burndy Library1