Sup, iam Kim Hanna, May your day be joyful.
What Is The Oldest Last Name In Ireland? [Solved]
Wow! O’Clery is the oldest known Irish surname - it dates back to 916 A.D. when Tigherneach Ua Cleirigh, lord of Aidhne, passed away in County Galway. Amazingly, this could be the oldest surname recorded in all of Europe!