| Alejo | | ah-LE-kho | Spanish | |
| Aleks | | - | Russian, Ukrainian, Slovene, Polish | |
| Aleksandar | | - | Bulgarian, Macedonian, Croatian, Serbian | |
| Aleksander | | ahl-ek-SAHN-der (Polish) | Polish, Slovene, Albanian, Estonian, Norwegian, Danish | |
| Aleksandr | | ah-lyek-SAHNDR (Russian), ah-leek-SAHNDR (Russian) | Russian, Armenian, Ukrainian | |
| Aleksandra | | ah-lyek-SAHN-drah (Russian), ah-leek-SAHN-drah (Russian), ahl-ek-SAHN-drah (Polish) | Russian, Ukrainian, Polish, Serbian, Bulgarian, Slovene, Croatian, Macedonian, Estonian | |
| Aleksandras | | - | Lithuanian | |
| Aleksandre | | - | Georgian | |
| Aleksandrina | | - | Russian, Bulgarian | |
| Aleksandro | | ah-lek-SAHN-dro | Esperanto | |
| Aleksandrs | | - | Latvian | |
| Aleksandru | | - | Medieval Slavic | |
| Aleksei | | ah-lyek-SYAY (Russian), ah-leek-SYAY (Russian) | Russian, Ukrainian, Belarusian | |
| Aleksey | | ah-lyek-SYAY (Russian), ah-leek-SYAY (Russian) | Russian, Ukrainian, Belarusian | |
| Alem | | - | Bosnian | |