| BILL m English |
| BILLIE m & f English |
| BILLY m English |
| ELMA f Dutch, German |
| GUGLIELMO m Italian |
| GUILHERME m Portuguese |
| GUILLAUME m French |
| GUILLEM m Catalan |
| GUILLERMO m Spanish |
| GWIL m Welsh |
| GWILHERM m Breton |
| GWILIM m Welsh |
| GWILLYM m Welsh |
| GWILYM m Welsh |
| HELMA f German, Dutch |
| HELMI f Finnish, Swedish |
| HELMINE f German |
| ILLIAM m Manx |
| JELLE m Frisian, Dutch |
| JELTJE f Frisian, Dutch |
| JELTSJE f Frisian, Dutch |
| LIAM m Irish, English |
| MIEN f Dutch, Limburgish |
| MIINA f Finnish |
| MIMMI f Finnish |
| MINA (1) f English, Dutch, Limburgish |
| MINNA f German, Finnish |
| MINNIE f English |
| PIM m Dutch |
| UILLEAG m Irish |
| UILLEAM m Scottish |
| UILLIAM m Irish |
| ULICK m Irish |
| VELMA f English |
| VELVEL m Yiddish |
| VELVELA f Yiddish |
| VILĈJO m Esperanto |
| VILÉM m Czech |
| VILHELM m Swedish, Norwegian, Danish, Hungarian |
| VILHELMAS m Lithuanian |
| VILHELMI m Finnish |
| VILHELMIINA f Finnish |
| VILHELMINA f Swedish, Finnish, Lithuanian |
| VILHELMO m Esperanto |
| VILHELMS m Latvian |
| VILHJÁLMUR m Icelandic |
| VILHO m Finnish |
| VILI m Hungarian, Slovene |
| VILIAM m Slovak |
| VILIM m Croatian |
| VILIS m Latvian |
| VILJAMI m Finnish |
| VILJEM m Slovene |
| VILJO m Finnish |
| VILKO m Slovene, Croatian |
| VILLE m Finnish, Swedish |
| VILLEM m Estonian |
| VILMA f Spanish, Hungarian, German, Swedish, Finnish, Czech, Slovak, Croatian |
| VILMOS m Hungarian |
| WIL m & f English, Dutch |
| WILHELM m German, Polish, Ancient Germanic |
| WILHELMINA f Dutch, German, Polish, English |
| WILHELMINE f German |
| WILKIE m English |
| WILKIN m Medieval English |
| WILKY m Medieval English |
| WILL m English |
| WILLA f English |
| WILLAHELM m Ancient Germanic |
| WILLEM m Dutch |
| WILLEMIJN f Dutch |
| WILLEMINA f Dutch |
| WILLI m German |
| WILLIAM m English |
| WILLIE m & f English |
| WILLIS m English |
| WILLY m & f English, German, Dutch |
| WILMA f German, Dutch, English |
| WILMOT m Medieval English |
| WILSON m English |
| WIM m Dutch, German |
| WIREMU m Maori |
| WÖLLEM m Limburgish |
| WULLEM m Limburgish |
| WUM m Limburgish |
