| Xandy | Unisex | American Names |
| Xannon | Unisex | American Names |
| Xantara | Woman | American Names |
| Xara | Unisex | American Names |
| Xaria | Woman | American Names |
| Xarissa | Woman | American Names |
| Xava | Woman | American Names |
| Xeraphina | Woman | American Names |
| Xhaiden | Man | American Names |
| Xidorn | Unisex | American Names |
| Xorn | Man | American Names |
| Yalitza | Woman | American Names |
| Yancy | Unisex | American Names |
| Yankee | Unisex | American Names |
| Yavesly | Woman | American Names |
| Yaymos | Man | American Names |
| Yenibeth | Woman | American Names |
| Yettie | Woman | American Names |
| Yetty | Woman | American Names |
| Ygritte | Woman | American Names |