| Wolfgang | | VAWLF-gahng (German), WUWLF-gang (English) | German, Ancient Germanic | |
| Wolter | | - | Dutch | |
| Worknesh | | - | Eastern African, Amharic | |
| Wotan | | VO-tahn (German) | Germanic Mythology | |
| Wouter | | VOW-tər, WOW-tər | Dutch | |
| Wu | | - | Chinese | |
| Wubbe | | VUB-bə (Dutch), WUB-bə (Dutch) | Frisian, Dutch | |
| Xabier | | sha-bee-ER | Basque, Galician | |
| Xander | | KSAHN-dər (Dutch), ZAN-dər (English) | Dutch, English (Modern) | |
| Xandra | | KSAHN-drah | Dutch | |
| Xanthe | | - | Greek Mythology, Ancient Greek | |
| Xanthippe | | ksahn-teep-pe (Ancient Greek), zan-TIP-ee (English) | Ancient Greek | |
| Xanthippos | | - | Ancient Greek | |
| Xanthos | | - | Greek Mythology, Ancient Greek | |
| Xavi | | - | Catalan | |