- Alphabets1
- Ambrose, Saint, Bishop of Milan, -3971
- Ambrosian rite (Catholic Church)1
- Amelius, Martyr1
- Amicus, Martyr1
- Anecdotes1
- Anglo-Norman dialect1
- Animals1
- Anne (Mother of the Virgin Mary), Saint1
- Annunciation to the Blessed Virgin Mary1
- Anselm, Saint, Archbishop of Canterbury, 1033-11091
- Anthony, of Padua, Saint, 1195-1231--Prayers and devotions1
- Anticlaudianus (Alanus, de Insulis)1
- Antiphonaries--Manuscripts1
- Aphorisms (Hippocrates)1
- Apocryphal Gospels1
- Apocryphal books1
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