Encyclopedias, Almanacs, Transcripts, and Maps
- Atienza, Juan de
- Atil or Itil
- Atisha
- Atkinson, Matthew (Paul of St. Francis)
- Atkinson, Thomas, Bl.
- Atlan, Henri
- Atlan, Jean
- Atlanta, Archdiocese of
- Atlantic Canada
- Atlas, David
- Atlas, Eleazar
- Atlas, Jechezkiel
- Atlas, Samuel
- Atonement, Day of (Yom Kippur)
- Atran, Frank Z.
- Attah Eḥad
- Attah Horeta Lada'at
- Attah Zokher
- Attali, Bernard
- Attali, Jacques