Gwillym kutanthauzira dzina labwino: Kumvetsera, Zamakono, Kulenga, Yosasunthika, Wokondwa. Pezani Gwillym kutanthauza dzina.
Gwillym chiyambi cha dzina loyamba. Welsh form of William. Pezani Gwillym chiyambi cha dzina loyamba.
Gwillym dzina lamasamba: Gwil. Pezani Mayina a Gwillym.
Mayina ofanana a Gwillym m'mayiko ndi zinenero zosiyanasiyana: Bill, Billie, Billy, Guglielmo, Guilherme, Guillaume, Guillem, Guillermo, Gwilherm, 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. Pezani Gwillym muzinenero zina.
Mayina ambiri omwe ali nalo dzina Dreidoppel: Guillermo, Juli, Arlen, Rogelio, Samual. Pezani Maina omwe amapita ndi Dreidoppel.