Guillem maana ya jina bora: Makini, Kubwa, Kisasa, Temperament, Ukarimu. Pata Guillem maana ya jina.
Guillem asili ya jina la kwanza. Aina ya Kikatalani William. Pata Guillem asili ya jina la kwanza.
Majina ya jina la Guillem katika nchi tofauti na lugha tofauti: Bill, Billie, Billy, Guglielmo, Guilherme, Guillaume, 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, Will, Willahelm, Willem, Willi, William, Willie, Willy, Wilmot, Wim, Wiremu, Wöllem, Wullem, Wum. Pata Guillem kwa lugha zingine.
Majina ya kawaida yenye jina la mwisho McWhan: Jimmy, Dann, Joella, Marco, Porter. Pata Majina yanayotembea na McWhan.