| Walter | | WAWL-tər (English), VAHL-ter (German, Polish, Italian) | English, German, Swedish, Norwegian, Danish, Polish, Italian, Ancient Germanic | |
| Wanda | | VAHN-dah (Polish), WAHN-də (English) | Polish, English, German, French | |
| WarcisŁAw | | - | Polish (Archaic) | |
| Wawrzyniec | | vahf-ZHIN-yets | Polish | |
| Wera | | VE-rah | Polish | |
| Weronika | | ve-raw-NEE-kah (Polish) | Polish, Sorbian | |
| WiĘCesŁAw | | - | Polish (Archaic) | |
| WielisŁAw | | vye-LEE-swahf | Polish | |
| WiesŁAw | | VYE-swahf | Polish | |
| WiesŁAwa | | vye-SWAH-vah | Polish | |
| Wiktor | | VEEK-tawr | Polish | |
| Wiktoria | | veek-TAWR-yah | Polish | |
| Wilhelm | | VIL-helm (German), VEEL-khelm (Polish) | German, Polish, Ancient Germanic | |
| Wilhelmina | | vil-hel-MEE-nah (Dutch) | Dutch, German, Polish, English | |
| Wincenty | | veen-TSEN-ti | Polish | |