Irish and Irish-Americans alike tend to be immensely proud of their surnames. But which last names win in the battle of Irishness? Here are the top 10 most popular Irish last names.
The O'Neill family traces its history back to 360 A.D. to the legendary warrior king of Ireland, Niall Noigiallach (Niall of the Nine Hostages), who is said to have been responsible for bringing St.Patrick to Ireland.