| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Wynnstan | - | Anglo-Saxon | ||
| Wynonna | wi-NON-ə | English (Rare) | ||
| Wynter | WIN-tər | English (Rare) | ||
| Wyot | - | Medieval English | ||
| Wystan | - | English (Rare) | ||
| Xabi | - | Basque | ||
| Xabier | sha-bee-ER | Basque, Galician | ||
| Xanthe | - | Greek Mythology, Ancient Greek | ||
| Xanthia | - | English (Rare) | ||
| Xanthippe | ksahn-teep-pe (Ancient Greek), zan-TIP-ee (English) | Ancient Greek | ||
| Xanthippos | - | Ancient Greek | ||
| Xanthos | - | Greek Mythology, Ancient Greek | ||
| Xanti | - | Basque | ||
| Xaver | - | German | ||
| Xavi | - | Catalan |