| Aikaterine | | - | Greek, Ancient Greek | |
| Akakios | | - | Greek, Ancient Greek | |
| Alard | | - | Ancient Germanic | |
| Alaric | | AL-ə-rik (English) | Ancient Germanic | |
| Alba (3) | | - | Ancient Germanic | |
| Alberich | | - | Ancient Germanic, Germanic Mythology | |
| Albertus | | ahl-BER-tus (Dutch) | Ancient Germanic (Latinized), Dutch | |
| Alboin | | - | Ancient Germanic | |
| Alcaeus | | al-SEE-əs (English) | Ancient Greek (Latinized) | |
| Alcibiades | | - | Ancient Greek (Latinized) | |
| Alda (1) | | - | Italian, Portuguese, Ancient Germanic | |
| Aldebrand | | - | Ancient Germanic | |
| Aldegar | | - | Ancient Germanic | |
| Aldegund | | - | Ancient Germanic | |
| Aldhard | | - | Ancient Germanic | |