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International Baby Names · Middle Names, Surnames, and Nicknames · Unisex Baby Names

Irish Last Names (With Meanings and Popularity)

By Pamela Redmond · Updated October 2026

Names407

Pages21

Total Names407

Across 21 pages

Page2

of 21

Showing 21–40 of 407

Reagan
Irish
"little king"
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…
Rowan
Scottish and Irish
"rowan tree; little redhead"
Stylish, gentle, and rustic at the same time, Rowan is a name that falls into various categories. Unisex and cool, mystical and woodsy, with the feel of both Rose and Riley, Rowan is a fresh but…
Lane
English
"a small roadway or path"
Lane is a recent hit name, that could be used for either gender, but is much more popular for boys. It's a surname that projects the pleasant picture of narrow, tree-lined country roads. Holding…
Sullivan
Irish surname
"black-eyed one"
Sullivan is a jaunty Celtic three-syllable name, with a real twinkle in its eye. It was immortalized in the 1930s classic film Sullivan's Travels and was chosen for one of Patrick Dempsey's twin…
Casey
Irish
"brave in battle"
Casey is a name with a big wide grin, Irish, friendly, and open, and associated with several American folk heroes--Casey Jones, the engine driver of the Cannonball Express who gave his life to save…
Brady
Irish
"broad meadow or large-chested"
The Irish name given to Miranda Hobbes's son on the dearly departed Sex and the City is a friendly and energetic choice. You well might want to make your son part of the Brady bunch. Brady has been a…
Finley
Irish and Scottish
"fair-haired hero"
A hugely popular choice for boys in England and Wales, Finley has been used for both sexes in the US since the early 2000s, and has since become one of the most popular unisex names . Until recently,…
Teagan
Irish or Welsh
"little poet or fair"
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…
Grady
Irish
"noble"
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…
Kieran
Irish
"little black-haired one"
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…
Murphy
Irish
"sea warrior"
This surname name was popularized for girls in the 80s and 90s by TV's Murphy Brown and it maintains that cool breezy energy today, while also having an appealing sea-related meaning. Ultimately…
Mckenna
Irish
"son of Kenneth"
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.
Finley
Irish and Scottish
"fair-haired hero"
This was Irish name was once used exclusively for boys, and remains so in England and Wales where it's a Top 50 choice. In the US, however, celebs Jason Sehorn, Angie Harmon, and Lisa Marie Presley…
Quinn
Irish
"descendant of Conn, chief leader, intelligence"
Quinn is an engaging Celtic surname, zippy, concise and strong. While it may now lean feminine in the US, given to girls about 80% of the time, it is still given to a substantial number of boys: 615…
Donovan
Irish
"dark"
One of the first of the appealing Irish surnames to take off in this country, this boys’ name has long outgrown its "Mellow Yellow" association, which came via the single from a sixties…
Finnegan
Irish
"fair"
If you like the Finn names and love James Joyce, Finnegan is extremely winning. Will & Grace 's Eric McCormack chose the Finnigan spelling for his son. And of course Finnegan gains you access to the…
Cassidy
Irish
"curly-haired"
Has fallen off its Kathie Lee Gifford inspired peak in the 1990s, but since that notably celebrity baby is now a grownup and out of the limelight, Cassidy may once again reclaim its own Irish charm.
Devin
Irish
"poet"
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…
Mara
Hebrew
"bitter"
Mara is the evocative ancient root of Mary, appearing in the Book of Ruth, in which Naomi, devastated after the death of her two sons, says "Call me not Naomi, call me Mara." It's one of the girl…
Makenna
Spelling variation of McKenna, Irish, Eastern African
"son of Kenneth; happy one"
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…

Irish Last Names (With Meanings and Popularity)

Reagan

Rowan

Lane

Sullivan

Casey

Brady

Finley

Teagan

Grady

Kieran

Murphy

Mckenna

Finley

Quinn

Donovan

Finnegan

Cassidy

Devin

Mara

Makenna