Save Type Surname (from given name) Usage Irish Pronounced Pron. /mˠəɡ.ˈiː.ŋəʃ/ [key·simplify] Meaning & HistoryExpand Links Irish Gaelic form of McGuinness. Related NamesDetails RootAonghus (given name)VariantsAngus, Guinness, Hennessy, MacGinnis, MacGuinness, McGinnis, McGuinness, Ó hAonghuisOther Languages & CulturesAngus, Innes, MacAngus, MacInnes, McInnes(Scottish) MacAonghais(Scottish Gaelic)