Save Type Surname (from given name) Usage Icelandic Meaning & HistoryExpand Links Means "son of Vilhjálmur". Related NamesDetails RootVilhjálmur (given name)Other Languages & CulturesWillems, Willemse, Willemsen, Wilms(Dutch) Gilliam, William, Williams, Williamson, Minett, Mynatt, Wilcox, Wilkerson, Wilkins, Wilkinson, Willis, Wilson(English) Guillaume, Guillot(French) Fitzwilliam, Mac Uileagóid(Irish) Lemmi(Italian) MacWilliam, McWilliam(Scottish) Categories defence, desire, family, given names, protection