Save Type Surname (from given name) Usage Irish Pronounced Pron. /ˈoː ˈmˠa.ɣəu̯.nˠə/ [key·simplify] Meaning & HistoryExpand Links Irish Gaelic form of Mahoney. Related NamesDetails RootMathgamain (given name)VariantsMacMathan, Mac Mathghamhna, Mahoney, McMahon