Save Type Surname (from given name) Usage Scottish Expand LinksMeaning & History Means "son of WILLIAM" in Gaelic. DetailsRelated Names VariantMcWilliamOther Languages & CulturesWillems, Willemse, Willemsen, Wilms(Dutch) Gilliam, William, Williams, Williamson, Minett, Mynatt, Wilcox, Wilkerson, Wilkie, Wilkins, Wilkinson, Willis, Wilson(English) Guillaume, Guillot(French) Vilhjálmsson(Icelandic) Mac Uileagóid, McElligott(Irish) Lemmi(Italian) Entry updated November 16, 2019 ·