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225+ Irish Boy Names (with Meanings)

225+ Irish Boy Names (with Meanings)

Irish boy names — and Celtic boy names in general — are becoming more and more popular beyond their native shores. In the US, the Irish name Liam is now Number 1 and all the different spellings of Aiden have climbed to the top of the U.S. popular names list.

Along with Liam and Aiden, other Irish boy names on the US Top 1000 include Finn, Declan, Connor, and Brody. Trending Irish names for boys include Ronan, Rory, and Sullivan.

In Ireland, top Irish boy names include Conor, Fionn, Oisin, and Cillian. Unique Irish boy names attracting attention include Cashel, Cormac, and Rafferty.

Irish names for boys and trending in other countries as well. Liam is an astonishing international success, ranking in the Top 25 in countries as diverse as Argentina and Austria, Sweden and France. Finn is another Irish boys' names that's an international star, in the Top 100 in Belgium, Germany, and The Netherlands.

While Irish names have become more popular for both genders, we see the style factor on the rise particularly in Irish boys' names unheard of here a generation ago, such as Declan and Finn. This list of Irish boy names is ordered by their current popularity on Nameberry.

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  1. FinnHeart
    • Origin:

      Irish
    • Meaning:

      "fair or white"
    • Description:

      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.
  2. OscarHeart
    • Origin:

      English or Irish
    • Meaning:

      "God spear, or deer-lover or champion warrior"
    • Description:

      Oscar is one of the most stylish Old Man Names of our era. While it's softened slightly in popularity over the past 20 years, that may be considered a very good thing.
  3. RowanHeart
    • Origin:

      Scottish and Irish
    • Meaning:

      "rowan tree; little redhead"
    • Description:

      Rowan – a strong surname and nature name (it's a tree with red berries) – is deservedly growing in popularity. Some scholars identify Rowan as originally a girls’ name, related to Rowena and Rhonwen, while others say Rowan's always been used for both genders. Sharon Stone chose the Roan spelling, which also relates to the reddish color, for her son, while Brooke Shields used Rowan for her daughter. Yet another increasingly popular spelling is Rowen.
  4. CillianHeart
    • Origin:

      Irish
    • Meaning:

      "war strife or church"
    • Description:

      Cillian is one of the native Irish names that, along with Aiden and Declan, is becoming an unlikely favorite in contemporary America. The Killian spelling has been more popular in the US, but Cillian's star is rising, perhaps thanks to Irish actor Cillian Murphy, star of Oppenheimer and Peaky Blinders.
  5. RoryHeart
    • Origin:

      Irish
    • Meaning:

      "red king"
    • Description:

      This spirited Gaelic classic, which became popular in Ireland via the illustrious twelfth century king Rory O'Connor, makes a highly energetic choice, now used for either sex. Rory's gender split is still trending boyward; it's one of the coolest boys' names starting with R.
  6. LiamHeart
    • Origin:

      Irish short form of William
    • Meaning:

      "resolute protection"
    • Description:

      Liam is the top boys' name in the US, holding the Number 1 spot for the past five years and also ranking as one of the most popular boys' names around the western world.
  7. RonanHeart
    • Origin:

      Irish
    • Meaning:

      "little seal"
    • Description:

      Ronan is the compelling legendary name of twelve Irish and Scottish saints that is now drawing some deserved attention; this cousin of the ascending Roman and Rowan was chosen by actor Daniel Day-Lewis and his writer-director wife Rebecca Miller in 1998, and more recently by actress Catherine Bell.
  8. KieranHeart
    • Origin:

      Irish
    • Meaning:

      "little dark one"
    • Description:

      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.
  9. IvoHeart
    • Origin:

      German
    • Meaning:

      "yew wood, archer"
    • Description:

      Ivo is an unusual, catchy name with the energetic impact of all names ending in 'o'. Hardly heard in the U.S., it is used a bit more frequently in England, as is the related Ivor, a favorite of such novelists as Evelyn Waugh and P.G. Wodehouse. Ivo is currently most popular in the Netherlands.
  10. LorcanHeart
    • Origin:

      Irish
    • Meaning:

      "little, fierce"
    • Description:

      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.
  11. SullivanHeart
    • Origin:

      Irish surname
    • Meaning:

      "black-eyed one"
    • Description:

      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 boys. Nickname Sully is equally jaunty.
  12. DeclanHeart
    • Origin:

      Irish, meaning unknown, possible "man of prayer"
    • Meaning:

      "man of prayer"
    • Description:

      Declan is the Anglicized form of the Irish name Deaglán. St. Declan was one of the first missionaries to bring Christianity to Ireland, preceding St. Patrick. Originally from Wales, he founded the monastery of Ardmore in Ireland.
  13. NolanHeart
    • Origin:

      Irish
    • Meaning:

      "champion"
    • Description:

      Nolan is one of the rising Irish surname names, in the spirit of Conan and Ronan, partially inspired by pitcher Nolan Ryan-- who was named Lynn at birth, after his father. Nolan is a cheerful, friendly traditional Irish surname with the appropriate meaning of "champion," and one of the new attractive boy names starting with N.
  14. FlynnHeart
    • Origin:

      Irish
    • Meaning:

      "descendant of the red-haired one"
    • Description:

      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.
  15. FinleyHeart
    • Origin:

      Irish and Scottish
    • Meaning:

      "fair-haired hero"
    • Description:

      Finley has been used for both sexes for enough years to become one of the most popular unisex names. Given nearly equally to boys and girls, Finley appeals to contemporary parents as a truly gender neutral choice.

  16. CianHeart
    • Origin:

      Irish
    • Meaning:

      "ancient"
    • Description:

      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. This was the name of several legendary figures, including Cian, son of the god of medicine. His own son was Lugh, the sun god and father of the Ulster warrior Cuchulain and Cian is also the name of the son-in-law of the high king Brian Boru. So very well connected.
  17. CormacHeart
    • Origin:

      Irish
    • Meaning:

      "charioteer"
    • Description:

      Both offbeat and upbeat, this evocative traditional Irish name that runs through Celtic mythology is known here via award-winning novelist Cormac McCarthy (born Charles). The author's adopted name is related to Cormac Mac Airt, one of the great legendary high kings of Ireland.
  18. RaffertyHeart
    • Origin:

      Irish
    • Meaning:

      "floodtide, abundance, prosperity"
    • Description:

      Jaunty and raffish, Rafferty is one of the most engaging of the Irish surnames, used by Jude Law and Sadie Frost for their son. Fortunately, it doesn't still go by its original form: O'Raighbheartaigh.
  19. ColinHeart
    • Origin:

      English diminutive of Nicholas or Irish and Scottish
    • Meaning:

      "people of victory; pup"
    • Description:

      Thanks to its dashing Anglo-Irish image — due partly to Colins Firth and Farrell — and its C-initialed two-syllable sound, Colin and its cousin Collin have enjoyed a long run of popularity, reaching as high as Number 84 in 2004.
  20. HughHeart
    • Origin:

      English from German
    • Meaning:

      "mind, intellect"
    • Description:

      Patrician to the core, Hugh was firmly in the Top 100 until 1903. It's never achieved those heights again, though it has always managed to remain in the Top 1000, scraping bottom at literally Number 1000 in 2006 before reversing course and heading back upwards.