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The 10 most popular Irish last names

Click links after each family to see complete clan story and photos


Coats of arms representing Irish clans
Coats of arms representing Irish clans

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READ THE WHOLE STORY OF THE BYRNE CLAN! CLICK HERE

7. Ryan – the little kings

The meaning of the Irish name Ryan comes from the old Gaelic word "righ" and the old Irish diminutive of "an," which together form the meaning of "little king."

The name Ryan comes from the Irish name O' Riain - a contraction of the older Irish form O'Mulriain, which is now virtually extinct.

Ryan is also an extremely popular first name, especially in Britain and the U.S.

The Ryan family motto is 'Malo More Quam Foedari', which, when translated, means 'I would Rather Die than be Disgraced'. And they call them “little” kings…

READ THE WHOLE STORY OF THE RYAN CLAN! CLICK HERE

8. O'Connor – patrons of warriors

They might not be warriors themselves, but at least O’Connors descend from them!

The O'Connor name, with its varied spellings, doesn't spring from a common source. The name arose in five areas of Ireland: Connacht, Kerry, Derry, Offaly and Clare and split into six distinct septs.

The most prominent sept is that of the Connacht O'Connors who gave us the last two High-Kings of Ireland: Turlough O'Connor (1088-1156) and Roderick O'Connor (1116-1198). They trace their heritage and name from the Irish "Ua Conchobhair," meaning from Conchobhar, a king of Connacht.

READ THE WHOLE STORY OF THE O'CONNOR CLAN! CLICK HERE

9. O'Neill – from a champion, Niall of the Nine Hostages

The O'Neill family traces its history back to 360 A.D. to the legendary warrior king of Ireland, Niall of the Nine Hostages, who is said to have been responsible for bringing St. Patrick to Ireland.

Niall is also said to have been incredibly fertile – he has 3 million descendents worldwide.

“O’Neill” is derived from two separate Gaelic words, "Ua Niall," which means grandson of Niall, and "Neill" meaning "champion."

Ireland’s O'Neills were known by the nickname "Creagh," which comes from the Gaelic word "craobh" meaning branch, because they were known to camouflage themselves to resemble the forest when fighting the Norsemen. Crafty fellows, those O’Neills.

READ THE WHOLE STORY OF THE O'NEILL CLAN! CLICK HERE

10. O'Reilly - ?

The O'Reillys round out the top 10 most popular names in Ireland.

Their family name is derived from the Gaelic "O'Raghailligh," meaning descendants of Raghaillach.

The O'Reillys were the most powerful sept of the old Gaelic kingdom of Breffny (Cavan and the surrounding counties), and the family is still prominent in the area.


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14 Comments

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Kendall, then you don't know very much about Irish surnames at all.
I was surprised not to see "McCarthy" on the list.
I though I would see Barry as well....
Where's 'Collins'? Thought it would've made the top 10.
Kendall: Popular isn't a common surname in Ireland--where did you get that idea?
Smith is a very common name in Ireland, and most of the Irish Smiths are of Gaelic stock. It's especially strong in Cavan. In fact variations on Smith are very common throughout Europe.
Seems to not include Smith because it’s not Irish is arbitrary and in error. There is a Gaelic origin for Smith (MacGabhann) just like Murphy. Many of the Irish names that you have noted have been anglicized, so why Smith should be singled out? I say this because Smith is one of the surnames, in my Irish linage along with Fitzgerald, Kennedy and Fitzpatrick. In my mind and I’m sure many others. I never think of Smith to be any less Irish, than the other names I listed.
So ... that means O'Braoin is uncommon (ie not to many of us) ... damn ...
I think Popular is a bad word choice. You're born with a surname you don't pick it out like a first name.
My family is all Irish, and names vary from: Rainey (My last name, and yes, it is Irish) Collins (Mother's maiden name) Walsh (Grandmother's maiden name, did appear on this list) O'Reilly (Great-Grandmother's maiden name and the rest of that side of the family) I know there are plenty more though just in my roots alone. George Dillon, what you said is true, but this post is referring to Irish heritage last names, not of the people currently in Ireland from other countries and cultures.
Where's Ying Yang? Jaryczevski? Singh? mBongo? Your list is quite inadequate, since it leaves out some of the most common names in Ireland right now.
What about O'Hanlyranohan? Must have come in #11.
Patrick? O'Padraig? I'm not certain of that second spelling, but have been told that "Patrick" was derived from it. However, I can't seem to find either spelling amongst the Irish clans. Can it be I'm NOT of Irish extract?!?
Was hoping to see McGroarty!
 




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