| Aldan | Form of ALDEN - old friend, wise protector | Boy | Anglo-Saxon |
| Alden | Old friend, wise protector | Boy | English |
| Aldon | Form of ALDEN - old friend, wise protector | Boy | |
| Alec | form of ALEXANDER - defender of mankind | Boy | Scottish |
| Alek | form of ALEXANDER - defender of mankind | Boy | Russian |
| Aleka | form of ALEXANDER - defender of mankind | Girl | Greek |
| Aleksy | form of ALEXIUS - defender | Boy | Polish |
| Alena | Form of HELEN - bright one | Girl | Greek |
| Alexa | Form of ALEXANDER - helper and defender of mankind | Girl | Greek |
| Alexander | Helper and defender of mankind | Boy | Greek |
| Alexandra | Form of ALEXANDER - helper and defender of mankind | Girl | Greek |
| Alexandria | Form of ALEXANDER - helper and defender of mankind | Girl | Greek |
| Alexandrina | Form of ALEXANDER - helper and defender of mankind | Girl | Greek |
| Alfonso | Form of ALPHONSE - eager, noble | Boy | German |