400+ Irish Last Names (With Meanings and Popularity)

  1. Banning
    • Origin:

      Irish
    • Meaning:

      "small, fair one"
    • Description:

      If you like the Irish surname feel, there are loads of more congenial options.
  2. Dignan
    • Origin:

      Irish surname
    • Meaning:

      "descendant of the dark haired one"
    • Description:

      An Irish surname — the Anglicized form of O’Duibhgeannáin — that would make a one-of-a-kind first name, unless you count the character in Wes Anderson's first film, Bottle Rocket. For fans of the auteur, perhaps Dignan is a better name for a pet — it may be extra appropriate to use the nickname Diggy.
  3. Breslin
    • Origin:

      Irish
    • Description:

      An Irish surname choice that could very well make its way into first name territory.
  4. Duane
    • Origin:

      Irish
    • Meaning:

      "swarthy"
    • Description:

      An old Irish surname that was big in the 1960s, but would be an unexpected choice for a child now.
  5. Mccanna
    • Origin:

      Irish surname
    • Meaning:

      "son of the wolf cub"
    • Description:

      Gary Sinise chose this Mc name for his late son McCanna, called Mac, in 1990, before Irish and Scottish surnames beginning with Mc or Mac became common as first names. Mac Sinise passed away from a rare form of cancer at the age of 33.
  6. Barry
    • Origin:

      Irish "spear"
    • Meaning:

      "spear"
    • Description:

      Out-of-date for a boy, innovative for a girl.
  7. Hennessy
    • Origin:

      Irish surname name
    • Description:

      Hennessy has attracted some notice as a first name via rapper Cardi B's sister Hennessy Carolina. It certainly has a pretty sound and can hold its own with the new generation of Irish names for girls that originated as surnames, such as Kennedy, McKenna, and Riley. Hennessy is also the brand name of a cognac, which is how Cardi B got her stage name -- her nickname was Bacardi.
  8. Brosnan
    • Origin:

      Irish
    • Meaning:

      "dweller near the Brosna River"
    • Description:

      Actor Pierce made both his first and last name appealing.
  9. Calloway
    • Origin:

      English from Latin
    • Meaning:

      "pebbly place"
    • Description:

      Calloway is one of those irresistibly jaunty, animated three-syllable surnames, like Sullivan and Finnegan — but this one has the added attraction of jazzy ties to the immortal "Dean of American Jive," Cab Calloway. For a girl, this could be an unconventional route to the cool nickname Callie.
  10. Dooley
    • Origin:

      Irish
    • Meaning:

      "dark hero"
    • Description:

      A common Irish surname that's seldom heard as a first name, but has an appealing meaning.
  11. Galvin
    • Origin:

      Irish
    • Meaning:

      "a sparrow"
    • Description:

      More common as a surname, Galvin is a possible alternative to Gavin and Calvin.
  12. Brennan
    • Origin:

      Irish
    • Meaning:

      "descendent of the sad one"
    • Description:

      Poised for popularity, Brennan is an Irish last name soft enough to borrow from the boys.
  13. Gilligan
    • Origin:

      Irish
    • Meaning:

      "lad"
    • Description:

      With the jaunty rhythm of other Irish surnames like Finnegan and Sullivan, plus the possibility for cool nickname Gil, this seems like a good candidate for the first name slot. It was the name of the main character in the TV show Gilligan's Island.
  14. Mulligan
    • Origin:

      Irish
    • Meaning:

      "descendent of the bald-headed"
    • Description:

      Less appealing than some other Irish surnames, such as Malone and Sullivan, unless used as a tribute to jazz musician Gerry. There could be some Mulligan stew teasing.
  15. Branagan
    • Origin:

      Irish
    • Meaning:

      "little raven"
    • Description:

      Bold Irish surname, full of energy and cheer.
  16. Donnelly
    • Origin:

      Irish
    • Meaning:

      "dark, brave one"
    • Description:

      Donnelly is among the more appealing Irish surname names, less well used than Donovan. Related options include the place name Donegal and the mythological god name Donegan.
  17. Callaway
    • Origin:

      English from Latin
    • Meaning:

      "pebbly place"
    • Description:

      Another animated Irish surname, this one with jazzy ties to the immortal "Dean of American Jive," Cab Calloway.
  18. Quinlan
    • Origin:

      Irish
    • Meaning:

      "descendant of Caoinlean, slender "
    • Description:

      Quinlan is an Irish surname name given to a few dozen baby girls in the US each year. With the success of Quinn as a girls' name, Quinlan and its variant spellings Quinlin and Quinlyn might follow behind.
  19. Merrigan
    • Origin:

      Irish surname, related to the sea
    • Description:

      A merry surname cousin of Kerrigan, could make a lively choice for a happy little girl.
  20. Maloney
    • Origin:

      Irish
    • Meaning:

      "devotee of the church"
    • Description:

      Too close to baloney.