Dictionary of Christian Biography and Literature to the End of the Sixth Century/B
- Babylas (1), bishop of Antioch
- Bachiarius
- Bardaisan
- Barnabas, Epistle of
- Barsumas (the Eutychian)
- Barsumas (the Nestorian)
- Basilides
- Basiliscus
- Basilius of Ancyra, also called Basilas
- Basilius of Ancyra, a presbyter
- Basilius, called Basil the Great
- Basilius, friend of Chrysostom
- Basilius of Cilicia
- Basilius, bishop of Seleucia
- Beda, more correctly Baeda, The Venerable
- Benedictus of Nursia
- Benedictus I., pope
- Bertha, wife of Ethelbert, king of Kent
- Beryllus, bishop of Bostra
- Blandina
- Boëthius, Anicius Manlius Severinus
- Bonifacius I.
- Bonifacius II.
- Bonosus
- Bosphorius
- Brigida (5), abbess of Kildare