Save Type Surname (from given name) Usage Irish, Scottish Expand LinksMeaning & History Gaelic form of MCNEIL. DetailsRelated Names VariantsMacNeil, Mac Niall, McNeal, McNeil, McNeill, McNiall, McNiel, Neil, O'Neal, O'Neill, Ó Néill, O'Niall(Irish) MacNeil, McNeal, McNeil, McNeill, McNiel, Neil(Scottish) Entry added December 3, 2014 ·