| Jessie | Woman | English Names |
| Jett | Man | English Names |
| Jewel | Woman | English Names |
| Jill | Woman | English Names |
| Jillian | Woman | English Names |
| Jim | Man | English Names |
| Jimi | Unisex | English Names |
| Jimmy | Man | English Names |
| Jinelle | Woman | English Names |
| Joanie | Woman | English Names |
| Joann | Woman | English Names |
| Joanna | Woman | English Names |
| Joanne | Woman | English Names |
| Jocelyn | Woman | English Names |
| Jock | Man | English Names |
| Jody | Unisex | English Names |
| Joe | Man | English Names |
| Joely | Woman | English Names |
| Joey | Unisex | English Names |
| Joffrey | Man | English Names |