400+ Irish Last Names (With Meanings and Popularity)

Undiscovered Irish surname.

A classic Irish "top-o'-the-mornin' surname with a lot of rhythm and pizzazz.

This somewhat boisterous Celtic name would be at home in a noisy pub or out walking on the moors. In Scotland, it was originally a nickname for someone with dark hair or a swarthy complexion.

Calloway is more popular among boys, while Callaway takes the title for girls. Perhaps it's the built-in floral nickname Calla.

An Irish surname name with a combination of boldness and élan. Some might connect it to the founder of the group T. Rex -- Marc Bolan.

Occasionally used in the African-American community to honor Jamaican activist Marcus Garvey, known as "Emperor of the Kingdom of Africa," though his first name is more frequently chosen. Another possible namesake is baseball player Steve Garvey. Garvey sounds more modern than Harvey.

Although Maguire is such a prominent Irish surname —it ranks in the Top 40 in the Emerald Isle —this lively and cheerful family name has rarely been used as a first, unlike more familiar examples like Ryan, Riley and Reagan. The powerful and distinguished Maguire clan was known for their courage, leadership and resilience. The name's many notable associations include the unionizing Pennsylvania coal miners known as the Molly Maguires, actor Tobey Maguire and Dixie Chick Martie Maguire. Other spellings are McGuire and McGwire; two other handsome Irish surnames to consider are Malone and Magee.

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.

Part of the next generation of preppy H-beginning surnames. Once Harrison, Hudson, and Holden are no longer fresh, expect to hear more little boys being called Hughes, Hutch, and Henderson on the playground.

Occasionally used as an alternative to Brandon or Brennan.

Hurley is a possibility as a unisex surname-name ending with the "lee" sound. It is perhaps most associated with British actress Elizabeth Hurley, and is much rarer than Harley, because the "ur" sound is currently out of fashion (and the word "hurl" may put some off).

This appealing name of a mythical king of Tara whose reign brough prosperity to his kingdom is strongly associated with actor Sean. The Irish form is Conaire.

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.

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.

Has the energetic-Irish-slightly-boyish image that many modern parents love.

An old Irish surname cousin of Tierney that makes an unusual and appealing Irish gender switch.

The spoiled only son of the richest family in town in a fifties movie.

Cagney is one of the spunkiest Irish surnames around, and could make a lively and fresher successor to the tired Casey.

Connelly is a rollicking and rare example of the popular surname genre that may work even better for girls. A huge update on Colleen.

Along with many other Irish surnames, Conley is picking up in use among both boys and girls.