Finn is a name with enormous energy and charm, that of the greatest hero of Irish mythology, Finn MacCool (aka Fionn mac Cuumhaill), an intrepid warrior with mystical supernatural powers, noted as well for his wisdom and generosity.

Long popular in Ireland and England, Kieran, the name of Ireland's first-born saint and twenty-five other saints, has been building its U.S. fan base thanks to its strong and attractive sound, and its fashionable Irish brogue. While Ciaran is the more authentic Irish spelling, Kieran is more popular this side of the Atlantic.

Liam is the top boys' name in the US, holding the Number One spot for the past eight years and also ranking as one of the most popular boys' names around the western world.

Before the young Irish actress Saoirse Ronan made her mark in the films Ladybird and The Lovely Bones, few of us had heard this name, let alone known how to pronounce it. But now it is slowly way edging its way into the mainstream, particularly, of course, with parents who have Irish roots. It made its first appearance in the US Top 1000 in 2016, when it was the third-fastest-rising girls' name.

Connor, the appealing name of an early semi-legendary king of Ulster in Irish mythology, sits firmly in the Top 100 and taken together with its alternate spellings would rank even higher. In its native Ireland the Conor version is one of the highest charting boys’ name.

Fia may be most notable at this moment as the Anglicized version of the Irish Fiadh, one of the fastest-rising names in the Republic of Ireland. The meaning of Fia or Fiadh is sometimes given as "deer" but that's in the sense of a wild deer, as the name relates to the ancient word for wild.

First-wave Irish name and place name—the poetic name for Ireland—now supplanted by newer alternatives such as Maeve and Delaney.

As Meghan/Megan and Reagan/Regan show signs of wilting, along comes Teagan to take up the slack: definitely one to consider. The vast majority of American babies named Teagan are now girls. A variant spelling is Teaghan.

A handsome Irish name for boys, very popular in that country, but in the US this traditional spelling might cause pronunciation problems. Still, whether Cian or Kian, it's simple and straightforward enough for the initiated. Cian is rising in the British popularity charts.

Aidan was originally a pet form of the Irish name Aodh (pronounced 'ee'), the name of the old Celtic god of the sun and fire. The name was borne by numerous early Irish saints, one of whom was noted for his kindness and generosity.

Ciara is very popular in Ireland, more familiar here as the Anglicized Kiera or Keira. The uninitiated will tend to pronounce Ciara as the Italian Chiara, a form of Claire—kee-AHR-a or even see-AHR-a, like the American singer-songwriter Ciara. In the US, Ciara peaked in 2005, when it was the Number 150 name; it's since fallen down to Number 882.

Devilishly handsome, Devin arrived as Kevin was moving out. Not to be confused (though it often is) with the English place-name Devon. While both Devin and Devon are flagging somewhat for boys, the names have dropped out of the Top 1000 for girls, making it more a masculine and less a unisex name these days.

We'd opt for Fiona.

A unisex name in the same vein as Casey, Cassidy, and Kelly, Carey and its alternative spelling Cary were familiar choices for boys in the first half of the 20th-century, and became popular in the 50s and 60s. By the 70s however, things had shifted: Carey was more popular for girls, reaching number #304 at its 1975 peak when it was given to nearly 760 girls.

More authentic and original form of Ryan, but far less common of the two spellings in the US. There were about 170 baby boys named Rian in the US last year, versus over 4000 named Ryan.

Is Keela distinct enough from Kayla to sound fresh and new? Maybe, though its similarity to the trendy cluster of names that also includes Kaylie and Kylie and Kelly may be enough to turn you off. Keela, a relative of the less serious Keely and the male Keelan, is used in modern Ireland.

Keelin is a form of Keelan, the Anglicized phonetic form of Caelan or Caoilinn, said to be a unisex name but in practice used almost exclusively for boys. Girls would more often be called Keela, Keeley, or Keely.