Encyclopedias, Almanacs, Transcripts, and Maps
- Atar
- Atar (Aptheker) Haim
- Atarot
- Ataroth
- Ataturk, Mustafa Kemal (1881–1938)
- Athala of Bobbio, St.
- Athaliah
- Athanasius I, Patriarch of Constantinople
- Athanasius of Naples, St.
- Athanasius the Athonite, St.
- Athanasius, St.
- Athelney, Abbey of
- Athelstan, King of England
- Athenagoras
- Athenagoras I
- Athens, Schools of
- Athias, Joseph and Immanuel
- Athlit
- Athribis
- Athronges