McKenna — Irish Surname Origin & Meaning
Irish form: Mac Cionaoith
Meaning: “son of Cionaodh”
Traditional stronghold: Monaghan
Lords of Truagh in north Monaghan.
Related names from the same part of Ireland: Connolly · Duffy · McMahon · McCabe · O'Gorman · Traynor · McArdle · Finn