| Jupiter | Unisex | Latin Names |
| Justinian | Man | Latin Names |
| Justus | Man | Latin Names |
| Juventas | Unisex | Latin Names |
| Karise | Woman | Latin Names |
| Korbin | Man | Latin Names |
| Krizia | Woman | Latin Names |
| Latona | Woman | Latin Names |
| Laura | Woman | Latin Names |
| Lavina | Woman | Latin Names |
| Lavinia | Woman | Latin Names |
| Lawrencia | Woman | Latin Names |
| Lelia | Woman | Latin Names |
| Leni | Woman | Latin Names |
| Leo | Man | Latin Names |
| Leocadia | Woman | Latin Names |
| Leonitus | Man | Latin Names |
| Letitia | Woman | Latin Names |
| Leviticus | Man | Latin Names |
| Libra | Woman | Latin Names |