| Name | Meaning | Gender | Origin |
|---|
| Anthony | "priceless one" | Male | Latin |
| Anwar | brighter, clearer | Male | Arabic |
| Apache | | Unisex | Hebrew |
| Aragorn | | Unisex | |
| Aramis | one of the three muskateers | Male | |
| Archibald | Bold
| Male | Teutonic |
| Archie | One who is bold
| Male | English |
| Ares | god of war | Unisex | |
| Argus | bright, watchful | Male | Greek |
| Aristo | best | Unisex | |
| Arlo | The barberry (shrub). | Male | Spanish |
| Armand | of the army | Male | |
| Arnie | The eagle | Male | |
| Arnold | The eagle rules.
| Male | English |
| Artemis | moon | Male | Greek |
| Arthur | Strong as a rock, noble, follower of Thor | Male | Celtic |
| Ash | Ash tree.
| Male | English |
| Asher | fortunate, lucky, blessed, happy | Male | Hebrew |
| Ashton | ash trees place | Male | English |
| Aslan | | Male | Hebrew |
| Astley | | Unisex | Hebrew |
| Atilla | Beloved Father | Unisex | Hungarian |
| Atlas | Endures, Suffers | Male | Greek |
| Augustus | Majestic dignity and grandeur.
| Male | Latin |
| Avalon | island of apples | Female | Celtic |