10 Most Common Irish Last Names In America
They say everyone is Irish on St. Patrick’s Day. However, some people are definitely more Irish than others. Related: 14 Local Pubs To Visit On St. Patrick’s Day Below are…

CHELTENHAM, ENGLAND – MARCH 17: A woman wears a pair of shamrock shaped glasses during St Patrick’s Day at the Cheltenham Festival at Cheltenham Racecourse on March 17, 2016 in Cheltenham, England. The four day annual jump racing event sees jockeys compete for a piece of the 4.1 million GBP of the prize money. (Photo by Ben Pruchnie/Getty Images)
Photo by Ben Pruchnie/Getty ImagesThey say everyone is Irish on St. Patrick's Day. However, some people are definitely more Irish than others.
Below are the ten most common Irish last names found in America according to Ancestry.com. If one of these is on your birth certificate, you should be in the St. Patrick's Day parade, not just watching it:
- Murphy
- Kelly
- Sullivan
- Butler
- Kennedy
- Ryan
- O'Brien
- Walsh
- O'Connor
- Fitzgerald

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