Author
- Arles1
- Armenian Catholic Church1
- Arnulf of Bohéries1
- Arnulf of Orléans1
- Arrigucci family1
- Arīnī, Muḥammad ibn Najm1
- Ascanio Savorgnano1
- Ascanio Sforza1
- Asher ben Jehiel1
- Ashkenazi, Malkiel, -approximately 16201
- Asif al-Zaman, 1885-19611
- Assembly of the French clergy1
- Athanasius of Alexandria1
- Augustinians1
- Augustinus de Leonissa1
- Avraham Ben-Yosef1
- Avraham Daṿid ben Shemʻayah Shemuʼel Papo1
- Avraham Mosheh Leʼon1
- Avraham ben Mosheh Heilpronn1
- Avraham ben Tamim1