Save Type Surname (from given name) Usage Irish Pronounced Pron. O TIE-gan [key·IPA] Meaning & HistoryExpand Links Irish Gaelic form of TEAGAN. Related NamesDetails VariantsMac Cormaic, Mac Thaidhg, Ó Taidhg, TeaganOther Languages & CulturesMac Cormaic, Mac Thaidhg, McCaig, McCormick(Scottish) Entry updated May 29, 2020