Por Detrás do Nome
[https://www.behindthename.com/name/william]Wilhelm, Willahelm (Ancient Germanic), Gwilherm (Breton), Guillem (Catalan), Vilim, Vilko (Croatian), Vilém (Czech), Vilhelm (Danish), Wilhelmus, Willem, Jelle, Pim, Wil, Willy, Wim (Dutch), Vilhelmo, Vilĉjo (Esperanto), Villem (Estonian), Vilhelm, Viljami, Jami, Vilhelmi, Vilho, Vili, Viljo, Ville (Finnish), Guillaume (French), Wilhelm, Willi, Willy, Wim (German), Vilmos, Vili (Hungarian), Vilhjálmur (Icelandic), Uilliam, Liam, Uilleag, Ulick (Irish), Guglielmo (Italian), Vilhelms, Vilis (Latvian), Wöllem, Wullem, Wum (Limburgish), Vilhelmas (Lithuanian), Illiam (Manx), Wiremu (Maori), Wilkin, Wilky, Wilmot (Medieval English), Vilhelm (Norwegian), Wilhelm (Polish),
Guilherme (Portuguese), Uilleam (Scottish), Viliam (Slovak), Viljem, Vili, Vilko (Slovene), Guillermo (Spanish), Vilhelm, Ville (Swedish), Gwilym, Gwil, Gwilim, Gwillym (Welsh)