| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 581 | Oihane | Spanish | From the forest. | F | |
| 582 | Olinda | Spanish | Protector. | F | |
| 583 | Oliveria | Spanish | Affectionate. | F | |
| 584 | Olivia | Spanish | Olive. | F | |
| 585 | Ora | Spanish | Gold. | F | |
| 586 | Orquidea | Spanish | Orchid. | F | |
| 587 | Orquidia | Spanish | Orchid. | F | |
| 588 | Osana | Spanish | Health. | F | |
| 589 | Osane | Spanish | Health. | F | |
| 590 | Pabla | Spanish | Little. | F | |
| 591 | Paciencia | Spanish | Patient. | F | |
| 592 | Palba | Spanish | Blond. | F | |
| 593 | Palmira | Spanish | From the city of palms. | F | |
| 594 | Paloma | Spanish | Dove. | F | |
| 595 | Paquita | Spanish | Free. | F | |
| 596 | Pastora | Spanish | Shepherdess. | F | |
| 597 | Patricia | Spanish | Noble. | F | |
| 598 | Paulita | Spanish | Little. | F | |
| 599 | Paz | Spanish | Peace. | F | |
| 600 | Pedra | Spanish | Stone. | F | |