| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 601 | Heriberto | Spanish | Spanish form of Herbert 'shining warrior'. | M | |
| 602 | Hermosa | Spanish | Beautiful. | F | |
| 603 | Hernan | Spanish | Adventurous. Variant of Ferdinand. | M | |
| 604 | Hernandez | Spanish | Adventurous. Variant of Ferdinand. | M | |
| 605 | Hernando | Spanish | Adventurous. Variant of Ferdinand. | M | |
| 606 | Hilario | Spanish | Happy. | M | |
| 607 | Honor | Spanish | Honor. | F | |
| 608 | Honoratas | Spanish | Honor. | F | |
| 609 | Honorato | Spanish | Honor. | M | |
| 610 | Honoria | Spanish | Honor. | F | |
| 611 | Horado | Spanish | Spanish form of Horace 'timekeeper'. | M | |
| 612 | Hortencia | Spanish | Garden. | F | |
| 613 | Hugo | Spanish | Intelligent. | M | |
| 614 | Humberto | Spanish | Intelligent; Big; bright. | M | |
| 615 | Iago | Spanish | Supplanter. Spanish form of Jacob. Associated with the wicked Iago in Shakespeare's Othello'. | M | |
| 616 | Ib | Spanish | Beautiful. Diminutive of Isabel: Devoted to God. A Spanish variant of Elizabeth. | F | |
| 617 | Ibbie | Spanish | Beautiful. Diminutive of Isabel: Devoted to God. A Spanish variant of Elizabeth. | F | |
| 618 | Ibby | Spanish | Beautiful. Diminutive of Isabel: Devoted to God. A Spanish variant of Elizabeth. | F | |
| 619 | Idoia | Spanish | Reference to the Virgin Mary. | F | |
| 620 | Idurre | Spanish | Reference to the Virgin Mary. | F | |