Bl. - Both
- Boniface VIII
- Boniface VIII, Pope
- Boniface Wimmer
- Boniface, Saint
- Bonifazio Vitalini
- Bonizo of Sutri
- Bonn, University of
- Bonnard, Ven. Jean Louis
- Bonne-Espérance, The Abbey of
- Bonnechose, Henri-Marie-Gaston Boisnormand de
- Bonner, Edmund
- Bonnetty, Augustin
- Bonosus
- Bonvicino, Alessandro
- Book of Advertisements
- Book of Common Prayer
- Book of Daniel
- Book of Jubilees
- Book of Judith
- Book of Kells
- Book of Martyrs, Foxe's
- Book of Micheas
- Book of Nehemiah
- Book of Ruth
- Book of Tobias
- Book of Wisdom
- Books, Index of Prohibited
- Bordeaux
- Bordeaux, University of
- Bordone, Cavaliere Paris
- Boré, Eugène
- Borgess, Caspar Henry
- Borgia, Stefano
- Börglum, Ancient See of
- Borgo San-Donnino
- Borgo San-Sepolcro
- Borgognone, Ambrogio
- Borie, Pierre-Rose-Ursule-Dumoulin
- Borneo
- Borras, Francisco Nicolás