| Acacius | | - | Ancient Greek (Latinized) | |
| Achaikos | | - | Biblical Greek, Ancient Greek | |
| Adalberht | | - | Ancient Germanic | |
| Adalbern | | - | Ancient Germanic | |
| Adalbert | | AH-dahl-bert (German) | Ancient Germanic, German, Polish | |
| Adalfarus | | - | Ancient Germanic (Latinized) | |
| Adalfuns | | - | Ancient Germanic | |
| Adalhard | | - | Ancient Germanic | |
| Adalheidis | | - | Ancient Germanic | |
| Adalwin | | - | Ancient Germanic | |
| Adalwolf | | - | Ancient Germanic | |
| Adela | | ə-DEL-ə (English), ah-DE-lah (Polish) | English, Spanish, Romanian, Polish, Ancient Germanic | |
| Adelais | | - | Ancient Germanic | |
| Adelina | | ah-de-LEE-nah (Italian), ah-dhe-LEE-nah (Spanish) | Italian, Portuguese, Spanish, Romanian, German, Bulgarian, Ancient Germanic (Latinized) | |
| Adelmar | | - | Ancient Germanic, Portuguese (Brazilian) | |