| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Xenon | - | Ancient Greek | ||
| Xenophon | - | Ancient Greek | ||
| Zenais | - | Ancient Greek | ||
| Zeno | - | Ancient Greek (Latinized), Italian | ||
| Zenobia | zə-NO-bee-ə (English) | Ancient Greek | ||
| Zenobios | - | Ancient Greek | ||
| Zenon | ZE-nawn (Polish) | Ancient Greek, Polish | ||
| Zephyros | - | Greek Mythology, Ancient Greek | ||
| Zoe | ZO-ee (English), DZO-e (Italian) | English, Greek, Italian, Ancient Greek | ||
| Zopyros | - | Ancient Greek | ||
| Zosime | - | Ancient Greek | ||
| Zosimos | - | Ancient Greek | ||
| Zosimus | - | Ancient Greek (Latinized) | ||
| Zoticus | - | Ancient Greek (Latinized) | ||
| Zotikos | - | Ancient Greek |