400+ Irish Last Names (With Meanings and Popularity)

This attractive surname name still projects that Kennedy family charisma. While it didn't come into widespread use until long after the deaths of martyred heroes President John F. or Senator Robert Kennedy, Kennedy is now one of the most popular unisex names, particularly for girls. This is one name that manages to sound trendy and traditional at the same time.

Less popular than the Bueller-inspired Sloane but following on its coattails, this name ranks toward the middle of the Top 1000, but we see both spellings sticking around for years to come.

Rooney is one of many bouncy Irish surnames that could make an agreeable first, once tied to Mickey Rooney (who was actually born Joseph Yule) in his young and spunky Andy Hardy period.

This name of three ancient saints, one Wayans brother, and an NFL wide receiver makes an energetic choice.

Made famous by former child star Macaulay Culkin, one of the more popular Mac names.

An uncommon Irish-accented surname that seems particularly well suited to a girl. Tierney Sutton is a well-known jazz singer. Tierney, in its original Tiarnach form, was the name of several saints. It can also join the ranks of Old Hollywood names, via the haunting actress Gene Tierney. ER actress Maura Tierney is a current surname bearer. 

Brogan is a cheerful Irish surname that would fit right in with the Logans and Br-starting names now trendy for boys. It's been on the pop list for the past three years, though it's sliding again. Its history includes Saint Brogan (Broccan in Gaelic), who was Saint Patrick's nephew and scribe.

Upper crust-y surname Sheridan gains some energy when used for a girl.

The name of a historic Irish leader, Gannon has a solid, yet spirited feel. It was one of the fastest-rising names of 2014, but that trend didn't continue. One pop culture influence was the name of Teen Mom 3 son Gannon Dewayne McKee.

Made famous by F. Scott Fitzgerald and John Fitzgerald Kennedy; still works best as a middle name.

Hayes is a stylish surname name given to more and more baby girls -- nearly 100 in the US last year. That's a considerable number, but many fewer than the nearly 1800 baby boys named Hayes.

Although this surname name is closely related to the more common Irish name Kieran, Kiernan is also a well used family name, tied to thirty-three ancient chieftains. It has on a few occasions been used for girls.

An Irish last-name-first-name that could make a child feel distinctive, while still having the regular guy nickname of Quinn. Christine Taylor and Ben Stiller spelled their son's name Quinlin.

The additional syllable makes Lark a masculine surname name.

Tailored Tegan comes from a Welsh saint's name. Teagan is just a little bit different, from an Irish surname. The ea spelling is much more popular.

Makenna can be considered a member of the McKenna, Mackenna, Mckenzie and Mckayla family: surname style names that are popular for girls. It translates to "son of Kenneth", or taking Kenneth's meaning into account, "son born of fire". This particular spelling peeked in 2010 when it reached #201 on the US charts, and while it remains in the Top 500, it has declined in popularity in recent years.

Keely is well-used in modern Ireland, also found as Keeley and Keela. The boys' form is Keelan. Largely unknown in the US, this could make an interesting update for Kelly or Kaylie or Kylie -- though it might ultimately prove to close to one of those trendy names.

Used far more for boys with this spelling, but still has a nice impish Irish feel for a girl.

Riley is the spelling of this lively Irish name most often picked for girls, but this version is occasionally used.

The Christian name of the dashing Mr. Darcy in Pride and Prejudice— it was his mother's maiden name— is just one of several Fitz names, including Fitzroy, Fitzgerald, Fitzpatrick, that could be used to honor a dad named William, Roy, Gerald or Patrick.