Save Type Surname (from given name) Usage Irish Pronounced Pron. O HA-nə-gan [key·IPA] Meaning & HistoryExpand Links Irish Gaelic form of O'Hannagain. Related NamesDetails VariantsHanegan, Hanigan, Hannigan, Hannigen, O'Hanegan, O'Hanigan, O'Hannagain, O'Hannagan, O'Hannegan, O'Hannigain, O'Hannigan
