Save Type Surname (from given name) Usage Irish Meaning & HistoryExpand Links Anglicized form of Irish Ó Tadhgáin meaning "descendant of Tadhgán". Related NamesDetails VariantÓ TadhgáinOther Languages & CulturesMac Cormaic, Mac Thaidhg, McCaig, McCormick(Scottish) Categories anglicizations Entry updated November 16, 2019
