- ✠ St. Bademus, Founder, Martyr
- ✠ Saint Barachisius (and Jonas), Martyr
- ✠ Saint Barbara, Virgin and Martyr
- ✠ Saint Barbatus, Bishop of Benevento
- ✠ Saint Barnabas, Apostle and Martyr
- ✠ Saint Bartholomew, Apostle and Martyr
- ✠ Saint Basil the Great, Bishop, Doctor of the Church
- ✠ Lateran Basilica, the Church of the Most Holy Saviour, Rome
- ✠ Saint Basilissa (and Julian, her spouse), Virgin
- ✠ Saint Basilissa (and Julian), Virgin
- ✠ Saint Bathildes, Queen of France
- ✠ St. Bede the Venerable, Father of the Church
- ✠ Saint Benedict, Father of Western Monasticism
- ✠ St. Benedict Biscop, Abbot and Confessor
- ✠ St. Benedict Joseph Labre, Mendicant, Pilgrim
- ✠ St. Benedict of Anian, Abbot
- ✠ Saint Benen, (or Benignus), Bishop and Confessor
- ✠ St. Benezet, Confessor
- ✠ Saint Benjamin, Deacon, Martyr
- ✠ St. Bernadette Soubirous, Seeress of Our Lady of Lourdes, Virgin, Sister of Charity at Nevers
- ✠ Saint Bernard, Abbot of Clairvaux, Doctor of the Church
- ✠ St. Bernardine of Siena, Franciscan Missionary Preacher
- ✠ Saint Bertha, Widow, Abbess
- ✠ Saint Bertilla, Abbess
- ✠ Saint Bibiana, Virgin and Martyr
- ✠ Saint Blaise, Bishop and Martyr
- ✠ Saint Blandina, Virgin, Martyr
- ✠ Saint Bonaventure, Cardinal-Bishop, Doctor of the Church
- ✠ Saint Boniface, Bishop, Martyr
- ✠ Saint Brendan, Abbot of Clonfert
- ✠ Saint Bridget of Sweden, Widow
- ✠ Saint Bridgid, Abbess and Patroness of Ireland
- ✠ Saint Bruno, Founder of the Chartreuse or Carthusian Order
