400+ Irish Last Names (With Meanings and Popularity)

While Korrigan or more usually Corrigan is a traditional Irish surname, in Breton folklore a Korrigan is a spritelike creature who often creates mischief.

A modern update to Hilary, which is related to Gaelic Ealair.

With the jaunty rhythm of other Irish surnames like Finnegan and Sullivan, plus the possibility for cool nickname Gil, this seems like a good candidate for the first name slot. It was the name of the main character in the TV show Gilligan's Island.

To modernize and add some oomph to the dated CASEY, add an O'-and also honor the great Irish playwright Sean.

Like the other O' names, this is a wonderful way to pass down a family name.

Ryan Murphy used the name McAfee on a supporting character in his TV series The Politician, which introduced it as a usable baby name.