- Abbaye Saint-André (Villeneuve-lès-Avignon, France)1
- Abbaye aux Dames (Caen, France)1
- Abbaye de Corbie1
- Abbaye de Fontfroide1
- Abbaye de Montier-en-Der (Montier-en-Der, France)1
- Abbazia di Morimondo2
- Abbazia di S. Maria di Porcilia (Padua, Italy)1
- Abbazia di Santa Giustina (Padua, Italy)1
- Abbazia di Santo Stefano (Pistoia, Italy)1
- Abbeys3
- Abbots1
- Abbots--Appointment, call, and election1
- Abbreviations, Hebrew1
- Abbreviations, Latin1
- Abdülhamid II, Sultan of the Turks, 1842-19181
- Abhidharma1
- Ablutions (Islamic law)3
- Abnāsī, Ibrāhīm ibn Mūsá, 1325-1399. Sharḥ al-Alfīyah1
- Abraham (Biblical patriarch)4
- Abraham (Biblical patriarch) in the Qurʼan2