400+ Irish Last Names (With Meanings and Popularity)
- Hagan
Origin:
IrishMeaning:
"little fire; young"Description:
For fans of Hayden, Aiden, and Logan who are on the hunt for something familiar but unique, Hagan may be a possibility. It comes from the Irish surname Higgins, which itself derives from either Ó hAodhagáin or Ó hÁgáin, lending it the meanings "little fire" or "young".
- Mckenna
Origin:
IrishMeaning:
"son of Kenneth"Description:
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.
- Finnegan
Origin:
IrishMeaning:
"fair"Description:
Finnegan has been growing in popularity for boys, thanks to the love for all things Finn-related. It's started to be used occasionally for girls, too.
- Flannery
Origin:
IrishMeaning:
"descendant of Flannghal"Description:
Flann variation that's most familiar as the name of writer Flannery O'Connor. It derives from the Irish surname Ó Flannghaile, meaning "descendant of Flannghal".
- Brannigan
Description:
Brannigan is a masculine name of Irish origin, derived from the Gaelic surname Ó Branagáin, meaning 'descendant of Branagán.' The element 'bran' in Celtic languages refers to 'raven,' giving the name associations with this intelligent and mythologically significant bird. Originally a family name, Brannigan transitioned to occasional use as a first name in the late 20th century, reflecting the trend of using surnames as given names. While never common as a first name, it carries strong Irish cultural connections and projects a robust, distinctive character. The name may also evoke associations with fictional characters like Zapp Brannigan from Futurama, giving it a contemporary cultural reference point alongside its traditional heritage.
- Sheridan
Origin:
IrishMeaning:
"searcher"Description:
Upper crust-y surname Sheridan gains some energy when used for a girl.
- Kiernan
Origin:
IrishMeaning:
"little dark one"Description:
Kiernan Shipka, aka Sally Draper on Mad Men, brings this Irish surname into the girls' column. And, like Kieran and Tierney and Tiernan, it's one of the perfectly unisex baby names. Only 14 girls were named Kiernan in the US in a recent year...and three times as many boys. If you want to move beyond Riley and Kennedy to one of the more unusual surname-based Irish names for girls, this may be a good choice.
- Keely
Origin:
IrishMeaning:
"slender"Description:
Keely is well-used in modern Ireland, also found as Keeley and Keela. The boys' form is Keelan. Largely unknown in the US, this could make an interesting update for Kelly or Kaylie or Kylie -- though it might ultimately prove to close to one of those trendy names.
- Sheridan
Origin:
IrishMeaning:
"searcher"Description:
Sheridan is one surname-name that hasn't come into style for either gender, though it was lightly used for boys around the turn of the 20th century and girls 100 years later. The name does have an attractive sound and an appealing meaning.
- Foley
Origin:
IrishMeaning:
"plunderer"Description:
There are many more appealing Irish surnames than Foley, and certainly more positive meanings. If Foley is a genuine family name, this would be all right in the middle.
- Morley
Origin:
EnglishMeaning:
"moor, meadow clearing"Description:
Gently pleasant English family name long associated with 60-Minuteman Morley Safer.
- Feeny
Origin:
IrishMeaning:
"little raven"Description:
Feeny and its alternative spelling Feeney have several origins in Irish. They are anglicised forms of the surnames Ó Fiannaidhe (descendant of Fiannaidhe, meaning warrior), and Ó Fidhne (descendant of Fidhne, from the word for tree or wood). Feeny is also a place name in Northern Ireland, meaning "the woods. Although many Irish surnames are in style, like Keegan and Sullivan, this is one you've probably never met on a person before.
- Kennedy
Origin:
IrishMeaning:
"misshapen head"Description:
This attractive surname name still projects that Kennedy family charisma. While it didn't come into widespread use until long after the deaths of martyred heroes President John F. or Senator Robert Kennedy, Kennedy is now one of the most popular unisex names, particularly for girls. This is one name that manages to sound trendy and traditional at the same time.
- Doyle
Origin:
IrishMeaning:
"black stranger"Description:
An Irish surname possibility for those who like Daley, Royal, Dougal, and Dolan, though it may sound too much like doily to catch on for modern boys. Nevertheless, it was fairly well used in the 20th century, popular in the 30s, 40s, and 50s when it reached the Top 200 at one point.
- Tully
Origin:
Irish, ScottishMeaning:
"flood; quiet; hill"Description:
Tully is an Irish surname just waiting to be adapted as a first. Cute and lively, and reminiscent of Tilly or Tali, it's got a long history and a range of possible meanings, depending on which root you use.
- Sullivan
Origin:
IrishMeaning:
"dark eyes"Description:
Stylish and boyish but could work for a girl -- especially one with brown eyes -- and Sully is a quirky and jaunty nickname.
- Clancy
Origin:
IrishMeaning:
"red-haired warrior"Description:
Irish surnames are hot, and this one can successfully cross the line to work for girls, replacing the outdated Casey. And only a dozen girls were named Clancy in the US in one recent year (along with 27 boys), making it one of those rare Irish names that are both accessible and distinctive, classic and cool. Clancy is a winner for either gender.
- Buckley
Origin:
EnglishMeaning:
"meadow of the deer"Description:
Mama's boy.
- Forsythe
Origin:
English from GaelicMeaning:
"man of peace"Description:
A distinguished English and Irish surname, probably deriving from the Old Gaelic name Fearsithe, meaning "man of peace". It's also possible that the surname derives from a place name now lost to history, in which case the meaning would be "fairy meadow" or "fairy mound", from Gaelic fer "grass" or for "hill, mound" plus sithe "fairies".
- Callaghan
Origin:
IrishMeaning:
"lover of churches"Description:
A classic Irish "top-o'-the-mornin' surname with a lot of rhythm and pizzazz.
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