Save Type Surname (from given name) Usage Irish Meaning & HistoryExpand Links Irish Gaelic form of O'Neal. Related NamesDetails RootNiall (given name)VariantsMac Néill, McNeill, Neil, O'Neal, O'Neill, O'NiallOther Languages & CulturesNeal, Neil, Nelson, Nielson, Nigel, Niles(English) MacNeil, McNeal, McNeil, McNeill, McNiel, Neil(Scottish) MacNèill(Scottish Gaelic) Same SpellingO'Neill
