400+ Irish Last Names (With Meanings and Popularity)

One of numerous usable Irish and Scottish surnames starting with Mac and Mc, this is the real McCoy. McCoy Tyner, the well-known jazz pianist, is one of the few to use this very cool name. Bonus: Nickname Mac.

Tully is a relaxed, rarely used Irish surname possibility which might provide an alternative to Tommy, Eli, or Troy. It has a long history of usage and a number of meanings, depending on which root you follow.

Cheerful but laidback, surname-style Delaney is derived from the Old Irish name Dubhshláine and has become a familiar choice for girls in recent decades. Nevertheless, it has also been used for boys since the early 1900s and was equally - though rarely - given to both, right up until the 1990s.

The most enduringly popular hero of Irish myth was Finn McCool, whose name is one of the coolest ever. When used for the female protagonist of How to Make an American Quilt, Finn established its hipness for girls as well.

Bellamy is emerging as an up-and-coming girls' name, an Irish surname-y riff on the super-popular Bella series of names. While the Bella connection makes Bellamy sound a little trendier and more popular than it really is, we see the name possibly rising through the ranks for both genders in the coming years.

Devlin is an Irish name that's fresher and even more devilish than Devin.

The earliest written record of this surname occurs in the thirteenth century, when an O'Devlin was appointed Bishop of Kells in 1211.

Like somewhat more popular twin sister Reagan, this vibrant last-name-first Irish choice makes a strong, straightforward option.

We love this partly for purely personal reasons, since it is one of our surnames. We used it as the middle name of a son –and it can make a good first choice too. Redmond – also found as Reamann or Raemonn – is the Irish form of the Germanic name that occurs in modern English as Raymond.

Calloway is one of those irresistibly jaunty, animated three-syllable surnames, like Sullivan and Finnegan — but this one has the added attraction of jazzy ties to the immortal "Dean of American Jive," Cab Calloway.

This surname name popularized for girls by TV's Murphy Brown back in the 80's and 90's still has some breezy energy. Almost 400 baby girls were named Murphy in 2021, versus just over 200 baby boys, making the name solidly gender neutral.

Phelan, pronounced FAY-lan or FEE-lan, is an appealing Irish surname name, with a rich history in Irish myth and religious and secular life. One bearer was a fiercely loyal follower of the legendary warrior Finn MacCool, another was a missionary saint.

Talented actress Rooney Mara (originally born Patricia Rooney) has single-handedly transformed this Gaelic surname into a wearable and elegant girls' name. Often said to mean "red-haired", the original surname, rendered as O' Ruanaidh, actually means "descendent of the champion". Trivia note: the most famous Rooney, Mickey Rooney, was originally born Joseph Yule.

Finnigan is another way to spell Finnegan, one of the energetic Irish surname-names in vogue now. One note: While Finnigan, Finnian, Finley and so on are appealing names on their own, you don't need to use a longer form to get to Finn, which is a perfectly proper name all on its own.

Craig is a single-syllable baby-boomer name, still common in its native Scotland, but most modern Americans would prefer something like Kyle.

Teagan is a cousin of trendy names Reagan and Keagan now given to girls about six times as often as boys. As an Irish name, it's a diminutive of the original Tadhg. Teagan may also be a variation of the Welsh Tegan, a saint's name that means fair.

This Anglicized form of Bearach or short form of Finbarr was in the Top 200 in the USA for 50 years until the early 80s when it rapidly fell out of favor. Barry has not yet found popularity in the modern era - but that may well change as people rediscover their love of classic figures like musician Barry White, baseballer Barry Bonds or even Barack Obama, whose nickname as a young man was Barry.

Inextricably tied to the former president, Reagan is a handsome surname name with a cool, current sound. Gender-neutral nickname Ray/Rae is also very on-trend right now.

Callan is a Top 100 name for boys in Scotland and is on the rise in the US too, however, it has a unisex feel to it, thanks to nickname Callie.

Has a legitimate first name history in its native land and an appealing meaning, but pronunciation is far from obvious.

Lane is a unisex name equally accessible to boys and girls. As a common surname, Lane is attached to such celebrities as Diane and Nathan.