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'Connor name, with its varied spellings, doesn't spring from a common source. The name arose in five areas of Ireland: Connacht, Kerry, Derry, Offaly, and Clare and split into six distinct septs, five of which are still in existence.