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 occurs more in Ireland more than any other country or territory. It may also be rendered as:. For other potential spellings of this last name click here.
How Common Is The Last Name O'Briens? popularity and diffusion
O'Briens is the 8,968,613th most frequently used family name world-wide, held by approximately 1 in 1,821,886,479 people. It occurs predominantly in Europe, where 100 percent of O'Briens are found; 75 percent are found in Northern Europe and 75 percent are found in British Isles.
This surname is most frequently held in Ireland, where it is held by 3 people, or 1 in 1,569,646. In Ireland it is most frequent in: Leinster, where 67 percent are found and Munster, where 33 percent are found. Aside from Ireland O'Briens 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 surname declined 87 percent between 1901 and 2014.
O'Briens Last Name Statistics demography
The religious adherence of those bearing the last name is primarily 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