| Wisconsin | Unisex | French Names |
| Xarles | Man | French Names |
| Xaviere | Woman | French Names |
| Yanis | Man | French Names |
| Yoland | Woman | French Names |
| Yves | Man | French Names |
| Yvette | Woman | French Names |
| Yvon | Man | French Names |
| Yvonne | Woman | French Names |
| Zélie | Woman | French Names |
| Zénaïde | Woman | French Names |
| Zéphyrine | Woman | French Names |