Guillem Bríonna ainm is: Aireach, Tromchúiseach, Nua-aimseartha, Temperamental, Flaithiúil. Faigh Guillem bhrí ainm.
Guillem bunús ainm baiste. Catalan form of William. Faigh Guillem bunús ainm baiste.
Ainmneacha synonymous le haghaidh Guillem i dtíortha agus dteangacha éagsúla: 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. Faigh Guillem i dteangacha eile.
An chuid is mó ainmneacha coitianta le sloinne Darroch: Arabella, Will, Elanor, Fairy, Barb. Faigh Ainmneacha a théann leis Darroch.