400+ Irish Last Names (With Meanings and Popularity)

  1. Shea
    • Origin:

      Irish
    • Meaning:

      "the stately, dauntless one"
    • Description:

      The short but solid Irish surname Shea works well for both genders thanks to its soft, succinct sound. The traditional Irish form is Séaghdha, though it could also be used as a short form of Séamus, connected to James.
  2. Cassidy
    • Origin:

      Irish
    • Meaning:

      "curly-haired"
    • Description:

      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.
  3. Donovan
    • Origin:

      Irish
    • Meaning:

      "dark"
    • Description:

      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 singer-songwriter named Donovan.
  4. Murphy
    • Origin:

      Irish
    • Meaning:

      "sea warrior"
    • Description:

      This surname name popularized for girls by TV's Murphy Brown back in the 80's and 90's still has some breezy energy. Almost 400 baby girls were named Murphy in 2021, versus just over 200 baby boys, making the name solidly gender neutral.
  5. Ferris
    • Origin:

      Irish, English
    • Meaning:

      "strong man or ironworker"
    • Description:

      It's been four decades decades since Ferris Bueller took his famous day off in the cult classic 1986 teen comedy movie, but we think the time for this name could and should be now! Especially with the recent rise of the hero's girlfriend, Sloane, up the baby name rankings. Half preppy, half rugged, it boasts that stylish S ending and has a cozy, retro feel.
  6. Murray
    • Origin:

      Scottish
    • Meaning:

      "settlement by the sea"
    • Description:

      Murray, you may be surprised to discover, is a Scottish surname name --that of an ancient noble clan--with a sea-swept meaning, and just could be in the next wave of reevaluated grandpa names. Currently Number 60 for baby boys born in its native Scotland; it was at its highest in the US in 1922, when it reached Number 208, but has been off the list since 1975. Could it be time for a comeback?
  7. Shannon
    • Origin:

      Irish
    • Meaning:

      "old and wise"
    • Description:

      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.
  8. Crosby
    • Origin:

      Irish
    • Meaning:

      "village with crosses"
    • Description:

      Crosby is an attractively laid-back Irish surname with retro musical associations to Bing and Crosby, Stills, and Nash, and with a jaunty air. Crosby Braverman was the name of a character on the TV show Parenthood, played by Dax Shepard.
  9. Keegan
    • Origin:

      Irish
    • Meaning:

      "son of Egan"
    • Description:

      Keegan is one of a clan of spirited Irish surnames starting with K and ending with 'n'--this one with the cheery double 'e' in the middle-- that are appealing to an increasing number of parents. It derives from Mac Aodhagáin, meaning "son (or descendant) of Aodhagán," a diminutive of the Irish name Aodh--pronounced Aye.
  10. Shea
    • Origin:

      Irish
    • Meaning:

      "the stately, dauntless one; hawk"
    • Description:

      Not to be confused with shea butter, this name is a common surname in Ireland, combining spirit, substance, and gentleness. The traditional Irish form is Séaghdha (SHEH), though it could also be used as a short form of Séamus, connecting it to James.
  11. Cullen
    • Origin:

      Irish
    • Meaning:

      "holly tree"
    • Description:

      Cullen is an appealing Irish surname name that upped its cool factor considerably when it became the Twilight family name of Edward et al. It's considerably less popular than it was at its peak in 2010, but is still widely used.
  12. Blaine
    • Origin:

      Irish and Scottish
    • Meaning:

      "yellow"
    • Description:

      Attractive Scottish and Irish surname name of a seventh-century saint, associated with the illusionist and escape artist David Blaine.
  13. Lane
    • Origin:

      English
    • Meaning:

      "a small roadway or path"
    • Description:

      Lane is a unisex name equally accessible to boys and girls. Breezy, cool and contemporary, it might equally put in mind country lanes and banks of wildflowers.
  14. Calloway
    • Origin:

      English from Latin
    • Meaning:

      "pebbly place"
    • Description:

      Calloway is one of those irresistibly jaunty, animated three-syllable surnames, like Sullivan, Rafferty and Finnegan — but this one has the added attraction of jazzy ties to the immortal "Dean of American Jive," Cab Calloway. With its melodic sound, its similarity to Callahan, Caleb, Waylon, and Callum, and its fun, nature meaning, Calloway is a quietly rising choice in the US, given to 87 boys (and 22 girls) in a recent year.
  15. Craig
    • Origin:

      Scottish
    • Meaning:

      "from the rocks"
    • Description:

      Craig is a single-syllable baby-boomer name, still common in its native Scotland, but most modern Americans would prefer something like Kyle.
  16. Ryan
    • Origin:

      Irish
    • Meaning:

      "little king"
    • Description:

      This ultrapopular boys' name is rapidly becoming a hot name for girls; admired for its buoyant Irish spirit.
  17. Reagan
    • Origin:

      Irish
    • Meaning:

      "little king"
    • Description:

      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.
  18. Clancy
    • Origin:

      Irish
    • Meaning:

      "red-haired warrior"
    • Description:

      Clancy, one of the original crossover Irish surname names, is as energetic and appealing as ever — full of moxie, more distinctive than Casey, and also one of the less obvious of the red-headed names.
  19. Morrigan
    • Origin:

      Irish
    • Meaning:

      "phantom queen"
    • Description:

      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.
  20. Mccoy
    • Origin:

      Anglicization of MacAoidh or MacAodha, Scottish, Irish
    • Meaning:

      "son of Aodh; son of fire"
    • Description:

      One of many Irish and Scottish surnames starting with Mac and Mc that also feel usable as given names, McCoy has a jaunty and energetic sound. The name entered the US Top 1000 in 2020, and was given to around 220 boys in the US in a recent year, along with 6 girls.

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