O'Briens Surname
Approximately 4 people bear this surname
O'Briens Surname Distribution Map
| Place | Incidence | Frequency | Rank in Area |
|---|---|---|---|
| Ireland | 3 | 1:1,569,646 | 17,286 |
| Brazil | 1 | 1:214,074,332 | 1,693,628 |
| Canada | 1 | 1:36,845,591 | 464,108 |
| France | 1 | 1:66,422,722 | 504,397 |
| United States | 1 | 1:362,458,933 | 1,988,048 |
| Vietnam | 1 | 1:92,646,054 | 8,382 |
| Place | Incidence | Frequency | Rank in Area |
|---|---|---|---|
| Ireland | 23 | 1:192,603 | 9,322 |
| Place | Incidence | Frequency | Rank in Area |
|---|---|---|---|
| Scotland | 9 | 1:415,913 | 11,811 |
| England | 1 | 1:24,375,369 | 195,128 |
| Wales | 1 | 1:1,568,416 | 19,290 |
| Place | Incidence | Frequency | Rank in Area |
|---|---|---|---|
| United States | 1 | 1:50,218,684 | 817,899 |
O'Briens Demographics
O'Briens Religious Adherence
in Ireland
Religious Adherence
in Ireland
O'Briens Last Name Facts
Where Does The Last Name O'Briens Come From? nationality or country of origin
O'Briens is held by more people in Ireland than any other country/territory. It may appear in the variant forms:. Click here for further possible spellings of this last name.
How Common Is The Last Name O'Briens? popularity and diffusion
This surname is the 8,968,613th most frequently occurring family name in the world It is held by approximately 1 in 1,821,886,479 people. The last name O'Briens is predominantly found in Europe, where 100 percent of O'Briens reside; 75 percent reside in Northern Europe and 75 percent reside in British Isles.
The last name is most frequent in Ireland, where it is held by 3 people, or 1 in 1,569,646. In Ireland O'Briens is most frequent in: Leinster, where 67 percent are found and Munster, where 33 percent are found. Outside of Ireland this surname occurs in 5 countries. It is also common in Brazil, where 25 percent are found and Canada, where 25 percent are found.
O'Briens Family Population Trend historical fluctuation
The occurrence of O'Briens has changed over time. In Ireland the number of people carrying the O'Briens last name declined 87 percent between 1901 and 2014.
O'Briens Last Name Statistics demography
The religious devotion of those bearing the surname is chiefly Catholic (78%) in Ireland.
Phonetically Similar Names
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Footnotes
- Surnames are taken as the first part of an person's inherited family name, caste, clan name or in some cases patronymic
- Name distribution statistics are generated from a global database of over 4 billion people - more information
- Heatmap: Dark red means there is a higher occurrence of the name, transitioning to light yellow signifies a progressively lower occurrence. Clicking on selected countries will show mapping at a regional level
- Rank: Name are ranked by incidence using the ordinal ranking method; the name that occurs the most is assigned a rank of 1; name that occur less frequently receive an incremented rank; if two or more name occur the same number of times they are assigned the same rank and successive rank is incremented by the total preceeding names
- Ethnic group cannot necessarily be determined by geographic occurrence
- Similar: Names listed in the "Similar" section are phonetically similar and may not have any relation to O'Briens
- To find out more about this surname's family history, lookup records on FamilySearch, MyHeritage, FindMyPast and Ancestry. Further information may be obtained by DNA analysis