| Adelmar | | - | Ancient Germanic, Portuguese (Brazilian) | |
| Ademar | | - | Portuguese | |
| Ademir | | - | Portuguese (Brazilian) | |
| Adriana | | ahd-RYAH-nah (Italian, Spanish, Polish), ayd-ree-AN-ə (English) | Italian, Spanish, Portuguese, Romanian, Polish, Czech, Slovak, English | |
| Adriano | | ahd-RYAH-no (Italian) | Italian, Portuguese | |
| Afonso | | a-FAWN-saw (Galician) | Portuguese, Galician | |
| Agostinho | | - | Portuguese | |
| AlÍCia | | - | Catalan, Portuguese | |
| Alberta | | al-BUR-tə (English), ahl-BER-tah (Italian, Polish, German) | English, Italian, Portuguese, Polish, German | |
| Albertina | | ahl-ber-TEE-nah (Italian, German) | Italian, German, Dutch, Portuguese | |
| Alberto | | ahl-BER-to (Italian, Spanish), al-BER-too (Portuguese) | Italian, Spanish, Portuguese | |
| Albina | | ahl-BEE-nah (Russian, Italian, Polish) | Russian, Ukrainian, Italian, Portuguese, Spanish, Slovene, Polish, German, Lithuanian, Ancient Roman | |
| Albino | | - | Italian, Portuguese, Spanish | |
| Alcides | | - | Greek Mythology (Latinized), Portuguese, Spanish | |
| Alda (1) | | - | Italian, Portuguese, Ancient Germanic | |