| Adelina | | ah-de-LEE-nah (Italian), ah-dhe-LEE-nah (Spanish) | Italian, Portuguese, Spanish, Romanian, German, Bulgarian, Ancient Germanic (Latinized) | |
| Albena | | - | Bulgarian | |
| Aleksandar | | - | Bulgarian, Macedonian, Croatian, Serbian | |
| 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 | |
| Aleksandrina | | - | Russian, Bulgarian | |
| Ana | | AH-nah (Spanish) | Spanish, Portuguese, Slovene, Bulgarian, Romanian, Croatian, Serbian, Macedonian, Georgian | |
| Anastas | | ah-nah-STAHS (Bulgarian) | Russian, Bulgarian | |
| Anastasiy | | - | Russian (Archaic), Bulgarian (Archaic) | |
| Anastasiya | | ah-nah-stah-SEE-yah (Russian, Ukrainian, Bulgarian) | Russian, Ukrainian, Belarusian, Bulgarian | |
| Andon | | - | Bulgarian, Macedonian | |
| Andrei | | ahn-DRYAY (Russian) | Romanian, Russian, Bulgarian, Old Church Slavic | |
| Andrey | | ahn-DRYAY (Russian) | Russian, Bulgarian | |
| Angel | | AYN-jəl (English) | English, Bulgarian, Macedonian | |
| Ani | | - | Bulgarian, Georgian, Romanian, Spanish | |
| Anka | | AHN-kah (Polish) | Polish, Bulgarian, Croatian, Serbian | |