| Jaramillo | Unisex | Spanish Names |
| Javier | Man | Spanish Names |
| Jenofonte | Man | Spanish Names |
| Jeronimo | Man | Spanish Names |
| Jesualdo | Man | Spanish Names |
| Jimena | Woman | Spanish Names |
| Jimenez | Man | Spanish Names |
| Joaquin | Man | Spanish Names |
| Jorge | Man | Spanish Names |
| Jorgelina | Woman | Spanish Names |
| Jorrín | Man | Spanish Names |
| José | Man | Spanish Names |
| Josea | Man | Spanish Names |
| Josefa | Woman | Spanish Names |
| Josue | Man | Spanish Names |
| Joyita | Woman | Spanish Names |
| Juan | Unisex | Spanish Names |
| Juana | Woman | Spanish Names |
| Juancho | Man | Spanish Names |
| Juandalynn | Woman | Spanish Names |