| AscensiÓN | | ah-then-SYON (Spanish), ah-sen-SYON (Latin American Spanish) | Spanish | |
| Asdrubal | | - | Spanish | |
| Asun | | AH-soon | Spanish | |
| AsunciÓN | | ah-soon-THYON (Spanish), ah-soon-SYON (Latin American Spanish) | Spanish | |
| Atilio | | ah-TEEL-yo | Spanish | |
| Augusto | | ow-GOOS-to (Spanish) | Spanish, Italian, Portuguese | |
| Aurelia | | ow-RE-lyah (Italian), ow-REL-yah (Polish) | Ancient Roman, Romanian, Italian, Spanish, Polish | |
| Aureliano | | ow-re-LYAH-no (Spanish) | Spanish, Italian | |
| Aurelio | | ow-RE-lyo | Italian, Spanish | |
| Aurora | | ow-RO-rah (Spanish), ə-RAWR-ə (English), OW-ro-rah (Finnish) | Italian, Spanish, Portuguese, English, German, Romanian, Finnish, Roman Mythology | |
| Azeneth | | - | Spanish | |
| Azucena | | ah-thoo-THE-nah (Spanish), ah-soo-SE-nah (Latin American Spanish) | Spanish | |