| Abbadon |
| Abano, Petrus de |
| Abracadabra |
| Abraham von Worms |
| Abraxas |
| Abundantia |
| Abwehrzauber |
| Adonai |
| Äon |
| Agares |
| Agathos Daimon |
| Agla |
| Agobard |
| Agrippa von Nettesheim, Heinrich Cornelius |
| Ahriman |
| Aini |
| Aiwass, Aiwaz |
| Akatheriel |
| Al-Araf |
| Albertus Magnus |
| Albigenser |
| Alchemie |
| Alciati, Andrea |
| Allocen |
| Almadel des Solomon |
| Alp |
| Alpdrücken |
| Alraun |
| Amaimon |
| Amduscias |
| Amulett |
| Amun |
| Amy |