| Joyita | Woman | Spanish Names |
| Joykiss | Woman | American Names |
| Joylyn | Woman | American Names |
| Jozi | Man | Swahili Names |
| Jrue | Unisex | American Names |
| Ju-long | Man | Chinese Names |
| Juan | Unisex | Spanish Names |
| Juana | Woman | Spanish Names |
| Juancho | Man | Spanish Names |
| Juandalynn | Woman | Spanish Names |
| Juanita | Woman | Spanish Names |
| Juarez | Unisex | Spanish Names |
| Jubal | Man | Hebrew Names |
| Jubilee | Woman | Hebrew Names |
| Jud | Man | English Names |
| Juda | Woman | Hebrew Names |
| Judaea | Unisex | English Names |
| Judah | Man | Hebrew Names |
| Judas | Man | Greek Names |
| Judd | Man | English Names |