William uiga igoa sili: Gauai, Agavaa, Fiafia, Matuia, Lē ma vāloia. Aumai William uiga o le suafa.
William amataga o le igoa muamua. From the Germanic name Willahelm, which was composed of the elements wil "will, desire" and helm "helmet, protection" Aumai William amataga o le igoa muamua.
William igoa diminutives: Bill, Billie, Billy, Liam, Wil, Will, Willie, Willy. Aumai Nicknames mo William.
E tusitusiga po o le auala e faalauiloa le igoa muamua William: WIL-ee-əm, WIL-yəm. E faapefea e faalauiloa William.
Igoa tutusa mo William i atunuu ma gagana eseese: 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, Vilhelms, Vilhjálmur, Vilho, Vili, Viliam, Vilim, Vilis, Viljami, Viljem, Viljo, Vilko, Ville, Villem, Vilmos, Wil, Wilhelm, Wilhelmus, Wilkin, Wilky, Willahelm, Willem, Willi, Willy, Wilmot, Wim, Wiremu, Wöllem, Wullem, Wum. Aumai William i isi gagana.
Surnames taatele ma igoa William: Ramsfield, Burke, Johnson, Kenworthy, Fox. Aumai Lisi o surnames ma igoa William.
O le tele o igoa tutusa ai ma faaiu Halyday: Guillermo, Tambra, Melva, Orlando. Aumai Igoa e aumai faatasi Halyday.