Vilhelms uiga igoa sili: Toaga, Agavaa, Volatile, Lē ma vāloia, Po nei. Aumai Vilhelms uiga o le suafa.
Vilhelms amataga o le igoa muamua. Latvian form of William. Aumai Vilhelms amataga o le igoa muamua.
Vilhelms igoa diminutives: Vilis. Aumai Nicknames mo Vilhelms.
Igoa tutusa mo Vilhelms i atunuu ma gagana eseese: Bill, Billie, Billy, Guglielmo, Guilherme, Guillaume, Guillem, Guillermo, Gwil, Gwilherm, Gwilim, Gwillym, Gwilym, Illiam, Jami, Jelle, Liam, Pim, Uilleag, Uilleam, Uilliam, Ulick, Vilĉjo, Vilém, Vilhelm, Vilhelmas, Vilhelmi, Vilhelmo, Vilhjálmur, Vilho, Vili, Viliam, Vilim, Viljami, Viljem, Viljo, Vilko, Ville, Villem, Vilmos, Wil, Wilhelm, Wilhelmus, Wilkin, Wilky, Will, Willahelm, Willem, Willi, William, Willie, Willy, Wilmot, Wim, Wiremu, Wöllem, Wullem, Wum. Aumai Vilhelms i isi gagana.
O le tele o igoa tutusa ai ma faaiu Nightwine: Rhea, Nelle, Raelene, Guillermo, Zola. Aumai Igoa e aumai faatasi Nightwine.