| Juanita | Woman | Spanish Names |
| Juarez | Unisex | Spanish Names |
| Juliana | Woman | Spanish Names |
| Julio | Man | Spanish Names |
| Junipero | Man | Spanish Names |
| Justo | Man | Spanish Names |
| Kiki | Woman | Spanish Names |
| La Cienega | Woman | Spanish Names |
| Labonita | Woman | Spanish Names |
| Lalo | Man | Spanish Names |
| Lamar | Man | Spanish Names |
| Lando | Man | Spanish Names |
| Lanza | Unisex | Spanish Names |
| Lareina | Woman | Spanish Names |
| Largo | Man | Spanish Names |
| Laria | Unisex | Spanish Names |
| Larisa | Woman | Spanish Names |
| Larna | Unisex | Spanish Names |
| Lazaro | Man | Spanish Names |
| Leandro | Man | Spanish Names |