690+ Irish Names (With Meanings and Popularity)

Different origin from the Welsh Dylan, but increasingly used as a variant spelling to honor Bob Dylan or Dylan Thomas. Still, the Dylan spelling is found 20 times as often as Dillon.

One of the original unisex Irish surname names, energetic Casey bounced onto the scene in the 1960s, then peaked in the 1980s for both boys and girls. Today Casey is having a resurgence for both girls and boys and re-entered the charts on the girls' side, likely due to the character Kayce Dutton (pronounced like Casey) on the hit show Yellowstone.

An Irish and Welsh form of Catherine, Caitlin was a boom name of the eighties, rocketing from obscurity (Americans first heard it via the wife of doomed poet Dylan Thomas) to the height of popularity in the space of a decade. The original name was gradually eclipsed by its myriad spelling variations -- Katelyn and Kaitlyn both soon topping it on the popularity lists.

Irish Aileen and Scottish Eileen may be pronounced the same way or Aileen can be pronounced with a long a at the beginning. While neither is particularly stylish, Aileen is slightly more popular and has reversed its downward slide to inch upward in the past few years, perhaps thanks to its stylish A beginning. Nicknames for Aileen include Isla, Ayla, Lee and Lena.

A popular Irish name virtually unknown here, but one that feels like it could follow in the footsteps of Siobhan and Saoirse. It's pronounced SOR-ka, but with a little hiccup between the 'r' and the 'c' that's difficult for non-Gaelic speakers to reproduce. Spelled (and pronounced) Sorsha, she is a major character in the movie Willow.

Irish place-name -- it's a river, a town, and an airport -- once popular but now supplanted by such newer immigrants as Saoirse and Seanan.

A strong, straightforward Irish unisex surname, with a merry glint in its eye, Reagan has been leaping up the popularity lists, to become one of the top girl names starting with R. Some will inevitably link it to President Ronald, but spell it Regan and it's a Shakespearean name: a daughter of King Lear.

While Kieran is the class and most-used male form of this name, some people spell it Keiran in keeping with the female Keira, the version popularized by the gorgeous Ms. Knightley.

Aoibhe may be considered a form of either Aoife -- beauty in Irish -- or Eve, which means life. Either way, this popular Irish name for girls is pronounced as Eva though outside of Ireland few would guess that. Leave Aoibhe to the Gaelic speakers.

Egan's likeness to the word eager gives this Irish surname a ready-to-please, effervescent energy, and it would make an appropriate substitute for the overused Aidan.

Sadly, this strong Celtic name often has "of the sorrows" attached to it because of the tragic character in Irish legend. Also a bit drab when compared with newer Irish imports.

Mackenzie begat McKenna - a catchy but very trendy choice. While the Mc or Mac prefix means "son of," this is much more popular as a girl name in the US, peaking at #177 in 2002.

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.

A short, breezy name with a sophisticated yet upbeat image, that doesn't betray its Irish roots. Bree first came to notice here in 1971 via the complex prostitute character in the movie Klute, which earned Jane Fonda an Oscar. More recently, it was tied to the character of Bree Van de Kamp on Desperate Housewives.

The mythological Morrigan was the ancient goddess of war, often symbolized by a crow. Besides being a name, this is also used as a proper noun preceded by an article: the Morrigan, defined as a monster in female form. The meaning of Morrigan has been related to both terror and greatness. While some relate the name to Morgan of the Arthurian legends, Morrigan and Morgan are actually unrelated.

Familiar in the US thanks to the lovely movie Brooklyn, based on the Colm Toibin novel of the same name. Popular in medieval times, it is still used in Ireland (properly spelt with a fada: Eilís) could make an alternative to the super-popular Isla. Eilish and Eibhlis are alternate forms.

Extremely popular in Ireland, Ciaran is also well used in England and is beginning to be adopted by parents in the U.S., though usually via the more American-friendly Kieran spelling. The Irish spelling is, however, becoming more familiar on this side of the Atlantic, due to the rising popularity of Belfast-born actor Ciaran Hinds.

While Larkin takes this name from girlish bird to boyish surname, there are actually more female Larkins these days than male, and it's a name that works as well for either gender.

Darren and wife Sharon shop for fifties memorabilia on eBay. The Connecticut place-name Darien might offer an update.

Pronounced lee-sha, Laoise is the feminine form of the Irish mythological names Lugh and Lugus, which means light. Lugus was the Celtic god of commerce and craftsmanship, the equivalent of the Roman Mercury, thought to inspire the later Irish hero Lugh. Laoise is among the Top 100 Irish names for girls, but Americans will definitely have pronunciation issues.