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- Abrasives
- Abrasives
- Abraxas (or Abrasax)
- Abred
- Abs diet
- Absent Healing
- Abteilung für Psychologie und Grenzgebiete der Psychologie des Psychologischen Instituts der Universität Freiburg I. Br
- Abu 'Ali al-Hasan ibn al-Hasan ibn al-Haytham
- Abu 'Ali al-Husayn ibn Abdallah ibn Sina
- Abu Abdallah Yaish ibn Ibrahim al-Umawi
- Abu al-'Abbas Abdallah al-Ma'mun ibn al-Rashid
- Abu al-Fida'
- Abu al-Hasan Ali al-Masudi
- Abu al-Wafa
- Abu al-Wafa
- Abu Ali al-Hasan ibn al-Hasan al-Haytham
- Abu Bakr ar-Razi
- Abu Ishaq al-Sahili
- Abu Ishaq Ibrahim ibn Yahya al-Zarqali
- Abu Ja'far al-Mansur