Save Type Surname (from given name) Usage Irish, Scottish Meaning & HistoryExpand Links From the given name Aonghus. Related NamesDetails RootAonghus (given name)VariantsGuinness, Hennessy, MacGinnis, MacGuinness, Mag Aonghuis, McGinnis, McGuinness, Ó hAonghuis(Irish) Innes(Scottish)