| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 1 | Abran | Spanish | Variant of Abram 'Exalted father.'. | M | |
| 2 | Adan | Spanish | Variant of Adam 'From the red earth.'. | M | |
| 3 | Adriano | Spanish | Dark; Variant of Adrian. From Adria.: (The Adriatic sea region.). | M | |
| 4 | Agustin | Spanish | Majestic dignity; grandeur. | M | |
| 5 | Alano | Spanish | Handsome. | M | |
| 6 | Alanzo | Spanish | Form of Alphonse: see Alfonso. | M | |
| 7 | Alarico | Spanish | Rules all. | M | |
| 8 | Alba | Spanish | A place name. | M | |
| 9 | Alberto | Spanish | Noble; bright. | M | |
| 10 | Alejandro | Spanish | Spanish form of Alexander defends mankind. | M | |
| 11 | Alfonso | Spanish | Spanish form of Alphonse 'eager for war'. | M | |
| 12 | Alfredo | Spanish | Spanish form of Alfred 'counsels the elves'. | M | |
| 13 | Alonso | Spanish | Eager for battle; Form of Alphonse: see Alfonso. | M | |
| 14 | Alonzo | Spanish | Eager for battle. | M | |
| 15 | Aluino | Spanish | Noble friend. | M | |
| 16 | Alvar | Spanish | Truth-speaker or guardian. | M | |
| 17 | Alvaro | Spanish | Truth-speaker or guardian. | M | |
| 18 | Alvino | Spanish | White; fair. | M | |
| 19 | Amadeo | Spanish | Loves God. | M | |
| 20 | Amado | Spanish | Loves God. | M | |