B
- Al-Baqillani (died 1013)
- Basilides, (c. 117-138)
- Bede (672/3-735)
- Bhartrhari, (5th century)
- Bodhidharma, (circa 440–528)
- Anicius Manlius Severinus Boethius, (480-524 or 525)
- Buddhaghosa, (5th century)
- Burchard of Worms (c.950-1025)
Read more about this topic: List Of Philosophers Born In The 1st Through 10th Centuries