| Antonio | | ahn-TO-nyo (Spanish, Italian) | Spanish, Italian, Croatian | |
| AnunciaciÓN | | ah-noon-thyah-THYON (Spanish), ah-noon-syah-SYON (Latin American Spanish) | Spanish | |
| Apolinar | | ah-po-lee-NAHR | Spanish | |
| Apolonia | | ah-paw-LAWN-yah (Polish) | Spanish, Polish | |
| Araceli | | ah-rah-THE-lee (Spanish), ah-rah-SE-lee (Latin American Spanish) | Spanish | |
| Aracelis | | - | Spanish | |
| Aracely | | - | Spanish | |
| Arcelia | | - | Spanish | |
| Ariadna | | ah-RYAHD-nah (Spanish, Polish) | Spanish, Catalan, Russian, Polish | |
| Aristides | | ah-ree-STEE-dhes (Spanish), ə-reesh-TEE-dəsh (Portuguese), ə-reesh-CHEE-jəsh (Brazilian Portuguese) | Ancient Greek (Latinized), Spanish, Portuguese | |
| Armando | | ahr-MAHN-do (Spanish, Italian) | Spanish, Italian, Portuguese | |
| Armida | | - | Italian, Spanish | |
| Arsenio | | ahr-SE-nyo (Spanish, Italian) | Spanish, Portuguese, Italian | |
| Artemio | | - | Italian, Spanish | |
| Arturo | | ahr-TOO-ro | Italian, Spanish | |