- Avicenna, 980-1037. Qaṣīdah fī al-nafs1
- Avodah (Yom Kippur liturgy)1
- Avraham ben Yosef Ḥasan, min Ṭaledo1
- Ayyubids1
- Baldi, Filippo1
- Banks and banking1
- Baptism--Catholic Church1
- Barberino, Bardo da1
- Bardi, Caterina de'1
- Bardi, Giovanni de', conte di Vernio, 1534-16121
- Bardi, Marco de'1
- Baronto, Francesca di1
- Baronto, Taddeo di1
- Baronto, Ventura di1
- Barontolo, Barontolo di1
- Bartholomew, of San Concordio, 1262-13471
- Bassāmah (Ibn ʻAbdūn, ʻAbd al-Majīd ibn ʻAbd Allāh)1
- Baʻal ha-Maʼor (Gerondi, Zerahiah ben Isaac, ha-Levi)1
- Beeleye, John de1
- Beeleye, Margery de1