Celtic Boy Names

This authentic form of the name of an Irish mythological hero with the power to make women fall instantly in love with him would work far better here as the Anglicized Dermot.

This genial Irish surname feels much more current than Donald.

Finnian is a fair jig of a name, energetic and easy on the ear. Finnian (and brother Finian) is also familiar in its alternate spelling through the classic 1968 Broadway musical Finian's Rainbow, later made into a film starring Fred Astaire as Finian McLonergan.

Flynn, a charming Irish surname, is still used only quietly, despite its easygoing, casual cowboy charm, unlike Finn which is a star of this genre. Flynn was the choice of Orlando Bloom and Miranda Kerr for their baby boy, and is also the middle name -- used as his first -- of a son of Miranda's fellow supermodel Elle Macpherson, of Gary Oldman's son Gulliver and Marley Shelton's daughter West.

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.

After being one of the hot upscale surnames of the nineties, Garrett has left the Top 100 and this streamlined spelling is dawdling near the bottom of the Top 1000.

This name of the courteous Knight of the Round Table, the nephew of King Arthur, has long been superseded by its Scottish form, Gavin.

Following in the footsteps of popular brother Brady, Grady is another lively, ebullient Irish surname name. The O'Gradys (originally O Gradaugh) were an ancient clan that produced an impressive number of bishops.

Perhaps the most remarkable O'Grady descendant is Muhammad Ali, whose mother's maiden name was Grady.

Iain, this authentic Gaelic form of John, has been well used in Scotland since the early twentieth century, used concurrently with the shortened Ian spelling, but is rarely seen in the US.

Kavanagh, which can also be spelled Cavanagh, Cavenagh, Kavanaugh, and Cavanaugh, is one of the few traditional Irish surnames not to start with Mc or O'. Kavanagh relates to the name first Kevin or Caomhan. Early kings of Leinster bore the name Kavanagh.

Nearly unknown outside the British Isles, this old Scottish variation has a sleek surname feel that can make an excellent update of the flagging Christopher.

Killian – aka Cillian – is a spirited yet resonant Gaelic name that was borne by several Irish saints and could make a distinctive replacement for the dated Kelly. Kylian is another spelling that's gaining traction, thanks to French soccer star Kylian Mbappé. Possible downsides: an unsavory first syllable and a connection to the trendy brew.

Lachlan is as Scottish as haggis and tartan plaid kilts—a favorite used throughout England, Scotland, Australia, and New Zealand—and just beginning to be noticed in the US: it reached the Top 1000 for the first time in 2013. An ancient name, Lachlan was originally used to describe the Viking invaders of Scotland, those from the land of the lochs.

Lorcan is a name rich in Irish history as belonging to several kings, including the grandfather of the most famous high king of Ireland, Brian Boru. Lorcan O'Toole, known in English as Laurence O'Toole, is the patron saint of Dublin, so it's not too surprising that Irish-born actor Peter O'Toole named his son Lorcan.

A strong, attractive surname name with a mix of possible origins: either from the Welsh first name Meuric,which is a form of Maurice, and contains Germanic elements meaning fame and power, or from a Scottish Gaelic word meaning a fork in a river or a road, which led to the name of several places named Merrick in Scotland. The Supreme Court saga of Justice Merrick Garland almost certainly caused the bump in popularity that propelled Merrick to its US Top 1000 debut in 2016.

Despite its ancient history, Merrick these days sounds more modern than the somewhat tired Derek.

Always the top spelling of the name; Neil peaked in the 1950s, but then enjoyed a second coming following the fame of such Neils as astronaut Armstrong and singers Sedaka, Diamond, and Young. Now semiretired.

Possible Gaelic alternative to Kevin and Devon.

Niall is pronounced nye-al--something like Neil, but this Irish spelling of the name makes it much more current and cool.

Quinn is an engaging Celtic surname that is still on the rise for girls but beginning to flag for boys. As a female name, Quinn is in the Top 100, used for over 3000 baby girls last year, but toward the bottom of the Top 500 for boys, given to 700 baby boys.