Willem uiga igoa sili: Agavaa, Matuia, Po nei, Volatile, Faauo. Aumai Willem uiga o le suafa.
Willem amataga o le igoa muamua. Dutch form of William. Willem the Silent, Prince of Orange, was the leader of the Dutch revolt against Spain that brought about the independence of the Netherlands Aumai Willem amataga o le igoa muamua.
Willem igoa diminutives: Jelle, Pim, Wil, Willy, Wim. Aumai Nicknames mo Willem.
E tusitusiga po o le auala e faalauiloa le igoa muamua Willem: VIL-ləm, WIL-ləm. E faapefea e faalauiloa Willem.
Igoa tutusa mo Willem i atunuu ma gagana eseese: Bill, Billie, Billy, Guglielmo, Guilherme, Guillaume, Guillem, Guillermo, Gwil, Gwilherm, Gwilim, Gwillym, Gwilym, Illiam, Jami, Liam, Uilleag, Uilleam, Uilliam, Ulick, Vilĉjo, Vilém, Vilhelm, Vilhelmas, Vilhelmi, Vilhelmo, Vilhelms, Vilhjálmur, Vilho, Vili, Viliam, Vilim, Vilis, Viljami, Viljem, Viljo, Vilko, Ville, Villem, Vilmos, Wil, Wilhelm, Wilkin, Wilky, Will, Willahelm, Willi, William, Willie, Willy, Wilmot, Wim, Wiremu, Wöllem, Wullem, Wum. Aumai Willem i isi gagana.
Surnames taatele ma igoa Willem: Cripe, Vandenberg, Blignaut, Bos, Kruger, Krüger. Aumai Lisi o surnames ma igoa Willem.
O le tele o igoa tutusa ai ma faaiu Kirtlan: Ted, Adam, Simon, Derrick, Chanelle, Ádám, Šimon, Simón. Aumai Igoa e aumai faatasi Kirtlan.