| Xarles | Man | French Names |
| Xava | Woman | American Names |
| Xavier | Man | Latin Names |
| Xaviera | Woman | Spanish Names |
| Xaviere | Woman | French Names |
| Xena | Woman | Greek Names |
| Xenia | Woman | Greek Names |
| Xenon | Man | Greek Names |
| Xenophon | Unisex | Greek Names |
| Xenos | Man | Greek Names |
| Xeraphina | Woman | American Names |
| Xerxes | Man | Greek Names |
| Xexilia | Woman | Basque Names |
| Xhaiden | Man | American Names |
| Xhosa | Woman | African Names |
| Xi-wang | Unisex | Chinese Names |
| Xia | Woman | Chinese Names |
| Xia He | Woman | Chinese Names |
| Xiang | Woman | Chinese Names |
| Xiao Chen | Unisex | Chinese Names |