Gwilherm eng yaxshi nom ma'nolari: Saxiy, Uchuvchi, Do'st, Diqqat bilan, Jiddiy. Qabul qiling Gwilherm ismining ma'nosi.
Gwilherm ismining kelib chiqishi. Breton form of William. Qabul qiling Gwilherm ismining kelib chiqishi.
Boshqa mamlakatlar va tillarda, Gwilherm uchun alohida ismlar: Bill, Billie, Billy, Guglielmo, Guilherme, Guillaume, Guillem, Guillermo, Gwil, 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, Will, Willahelm, Willem, Willi, William, Willie, Willy, Wilmot, Wim, Wiremu, Wöllem, Wullem, Wum. Qabul qiling Gwilherm boshqa tillarda.
Cafferty ismiga ega bo'lgan eng keng tarqalgan ismlar: Margarette, William, Byron, Shan. Qabul qiling Cafferty bilan ketadigan ismlar.