- Adeodatus
 - Adrian III
- Agapetus I
- Agatho
- Alexander I
- American Catholic: Saint of the Day
- Offers information on a new saint every day.
- Anacletus
- Anastasius I
- Andrew the Apostle@
- Anicetus
- Anselm of Canterbury (1033-1109)@
- Anterus
- Anthony of Padua (1191-1231) (1)
- Aquinas, Thomas (1225-1274)@
- Augustine of Hippo (354-430)@
- Bartholomew the Apostle@
- Basil the Great (329-379) (2)
- Becket, Thomas (1118-1170) (1)
- Bede (673-735) (10)
- Read about Bede, Benedictine monk, author, and scholar, declared English Doctor of the Church for his contributions to Catholicism. Sites offer biography, religious and cultural settings of his life and times, and historical and theological works of the author known as the Father of English History for his famous work The Ecclesiastical History of the English People.
- Benedict (480-547) (3)
- Benedict II
- Bernard of Clairvaux (1090-1153) (4)
- Bonaventure (1221-1274) (3)
- Boniface I
- Boniface IV
- Bridget of Sweden (1303-1373) (2)
- Cabrini, Frances Xavier (1850-1917) (2)
- Catholic Encyclopedia: Hagiography
- Name given to that branch of learning which has the saints and their worship for its object.
- Celestine I
- Clare of Assisi (1194-1253) (2)
- Clement I
- Cuthbert (634-687) (3)
- Cyprian of Carthage (200-258) (2)
- Damasus I
- Deusdedit
- Dionysius
- Edward The Confessor (1004-1066)@
- Eleutherius
- Eugene I
- Eusebius
- Eutychianus
- Evaristus
- Fabian
- Felix I
- Felix III
- Francis of Assisi (1181-1226) (9)
- Gelasius I
- George (6)
- Gertrude the Great (1256-1302)
- Known for her philosophical writings. Patron saint of nuns and travellers.
- Goretti, Maria (1890-1902) (1)
- Gregory II
- Gregory III
- Gregory of Nazianzus
- From the Oriental Institute: Centre for the Study of Gregory of Nazianzus.
- Gregory of Nyssa (335-394) (2)
- Gregory the Great (540-604) (2)
- Gregory VII
- Hilarus
- Hildegard von Bingen (1098-1179) (4)
- Hormisdas
- Hyginus
- Ignatius of Loyola (1491-1556) (4)
- Isidore of Seville (560-636) (4)
- James the Greater Apostle@
- James the Lesser Apostle@
- Joan of Arc (1412-1431) (18)
- Find sites for St. Joan of Arc, also known as Jeanne d'Arc, the national heroine of France. Sites offer biography, the role in the Hundred Years' War, historical significance, picture gallery, books, contemporary documents and articles, as well as the canonization of the French Roman Catholic saint put to trial and executed for heresy.
- John Chrysostom (347-407) (2)
- John Damascene (676-749) (3)
- John I
- John of Nepomuk (1345-1393)
- Patron saint of discretion, floods, and slander.
- John of the Cross (1542-1591) (7)
- John the Almsgiver (560-619)
- Layman who became the Patriarch of Alexandria.
- John the Apostle@
- John the Baptist (6)
- Joseph (6)
- Learn about Saint Joseph and his feast day through sites that offer information on his life and marriage to the Virgin Mary and as adoptive father of Jesus. Also find hymns, prayers, poems, and sermons.
- Juan Diego (1474-1548) (2)
- Jude Thaddeus the Apostle@
- Julian of Norwich (1342-1416) (4)
- Julian the Hospitaller
- Patron of ferrymen, innkeepers and circus performers.
- Julius I
- Leo I (The Great)
- Leo II
- Leo III
- Leo IV
- Linus
- Lucius I
- Lucy of Syracuse (283-304) (7)
- Luke (5)
- Magnus, Albertus (1200-1280)
- Theologian and philosopher of science.
- Malachy O'More (7)
- Marcellinus
- Marcellus I
- Mark (5)
- Martin I
- Mary Faustina Kowalska (1905-1938) (6)
- Mary Magdalene (7)
- Matthew the Apostle@
- Matthias the Apostle@
- Medieval Sourcebook: Saints' Lives
- Highlights this major influence of hagiography on the late ancient world, Byzantium, or the Latin Middle ages.
- Miltiades
- Nicholas (270-310) (19)
- Read about Saint Nicholas, the patron saint commonly identified with Santa Claus, through sites providing articles with the history, origin, timeline, stories, and legends about the Bishop of Myra.
- Nicholas I
- Padre Pio (1887-1968) (5)
- Paraskevi (2)
- Paul (1)
- Pedro de San Jose Betancur (1619-1667) (2)
- Peter of Alexandria
- From the Latin version by Anastasius Bibliothecarius.
- Peter the Apostle@
- Philip the Apostle@
- Pius I
- Pius V (1504-1566)
- Pontian
- Pope St. Mark
- Pro, Miguel Augustin (1891-1927) (2)
- Rosalia (3)
- Learn about Santa Rosalia, the patron saint of Palermo and Sicily. Sites offer biography, photos, and information about her feast day held the first Sunday of June each year.
- Saints' Names
- Includes names of saints with meanings.
- Scholastica (480-543)
- Twin sister of Saint Benedict.
- Sergius I
- Seton, Elizabeth Ann (1774-1821) (2)
- Silverius
- Simon the Apostle@
- Simplicius
- Siricius
- Sixtus I
- Sixtus II
- Sixtus III
- Societe des Bollandistes
- Team of specialists entirely devoted to hagiographical research.
- Stephen I
- Symmachus
- Telesphorus
- Teresa Benedicta of the Cross (1891-1942) (1)
- Teresa of Avila (1515-1582) (5)
- Therese of Lisieux (1873-1897) (7)
- Thomas the Apostle@
- Ursula (1)
- Valentine of Rome (4)
- Victor I
- Virgin Mary (14)
- Vitalian
- Wikipedia: Saint
- Article examines sainthood with definitions, historocity, and how the saints are recognised in different religions.
- Zachary
- Zephyrinus
- Zosimus
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