| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 21 | Ambrosio | Spanish | Divine. | M | |
| 22 | Amoldo | Spanish | The eagle rules. | M | |
| 23 | Anastasio | Spanish | Resurrected. | M | |
| 24 | Anbessa | Spanish | A Saracen governor of Spain. | M | |
| 25 | Andreo | Spanish | Manly; brave. Variant of English Andrew. | M | |
| 26 | Andres | Spanish | Manly; brave. Variant of English Andrew. | M | |
| 27 | Angel | Spanish | Angel. | M | |
| 28 | Angelino | Spanish | Messenger. Biblical name for spirit messengers God sends men. | M | |
| 29 | Angelo | Spanish | Messenger. Biblical name for spirit messengers God sends men. | M | |
| 30 | Anibal | Spanish | Grace of God. | M | |
| 31 | Anselmo | Spanish | Divine helmet. | M | |
| 32 | Anton | Spanish | Spanish form of Anthony beyond praise. | M | |
| 33 | Antonio | Spanish | Spanish form of Anthony beyond praise. | M | |
| 34 | Aquilino | Spanish | Eagle. | M | |
| 35 | Archibaldo | Spanish | Bold. | M | |
| 36 | Ario | Spanish | Variant of Arrio: Warlike; fierce. | M | |
| 37 | Arlo | Spanish | Bayberry (tree). | M | |
| 38 | Armando | Spanish | Army man. Variant of Herman. | M | |
| 39 | Arrio | Spanish | Warlike; fierce. | M | |
| 40 | Arryo | Spanish | Variant of Arrio: Warlike; fierce. | M | |