| Janella | Woman | English Names |
| Janet | Woman | English Names |
| Janette | Woman | English Names |
| Janice | Woman | English Names |
| Janine | Woman | English Names |
| Janis | Woman | English Names |
| Janna | Woman | English Names |
| January | Unisex | English Names |
| Jaquenetta | Woman | English Names |
| Jaren | Unisex | English Names |
| Jareth | Man | English Names |
| Jarrett | Man | English Names |
| Jarvis | Man | English Names |
| Jasper | Man | English Names |
| Jayme | Unisex | English Names |
| Jayna | Woman | English Names |
| Jean | Unisex | English Names |
| Jeanette | Woman | English Names |
| Jecca | Woman | English Names |
| Jeff | Man | English Names |