Encyclopedias, Almanacs, Transcripts, and Maps
- Agatho, Pope, St.
- Agde
- Age (Canon Law)
- Age (Impediment to Marriage)
- Age and the Aged
- Agen
- Agennētos
- Aggadah or Haggadah
- Aggadat Bereshit
- Aghlabids
- Aghmati, Zechariah ben Judah
- Agil, St.
- Agility
- Agilulf of Cologne, St.
- Agmon (Bistritski), Nathan
- Agmon, Shmuel
- Agnelli, Giuseppe
- Agnellus of Pisa, Bl.
- Agnes of Assisi, St.
- Agnes of Bohemia, St.