O'Riordon Surname
Approximately 4 people bear this surname
O'Riordon Surname Distribution Map
| Place | Incidence | Frequency | Rank in Area |
|---|---|---|---|
| Argentina | 4 | 1:10,685,854 | 219,200 |
| United States | 3 | 1:120,819,644 | 1,331,040 |
| Canada | 1 | 1:36,845,591 | 464,108 |
| Place | Incidence | Frequency | Rank in Area |
|---|---|---|---|
| Ireland | 10 | 1:442,987 | 15,290 |
O'Riordon Demographics
O'Riordon Religious Adherence
in Ireland
Religious Adherence
in Ireland
O'Riordon Last Name Facts
Where Does The Last Name O'Riordon Come From? nationality or country of origin
The last name O'Riordon is held by more people in Argentina than any other country/territory. It may be found as a variant:. Click here for other potential spellings of O'Riordon.
How Common Is The Last Name O'Riordon? popularity and diffusion
It is the 8,968,613th most commonly held last name on a worldwide basis, borne by around 1 in 1,821,886,479 people. The last name O'Riordon occurs predominantly in The Americas, where 200 percent of O'Riordon reside; 100 percent reside in North America and 100 percent reside in Anglo-North America.
It is most commonly occurring in Argentina, where it is borne by 4 people, or 1 in 10,685,854. In Argentina it is mostly concentrated in: Buenos Aires Province, where 100 percent are found. Besides Argentina this last name is found in 2 countries. It is also found in The United States, where 75 percent are found and Canada, where 25 percent are found.
O'Riordon Last Name Statistics demography
The religious adherence of those holding the O'Riordon surname is principally Catholic (100%) in Ireland.
Phonetically Similar Names
| Surname | Similarity | Worldwide Incidence | Prevalency |
|---|---|---|---|
| O'Rieordon | 95 | 1 | / |
| Oriordon | 94 | 24 | / |
| O'Riordan | 89 | 8,158 | / |
| O'Rioordan | 84 | 1 | / |
| O'Reiordan | 84 | 0 | / |
| Oriordan | 82 | 1,059 | / |
| Oriardon | 82 | 1 | / |
| O'Rirdan | 82 | 1 | / |
| O'Reardon | 78 | 202 | / |
| O'Reordan | 78 | 5 | / |
| O'Reirdan | 78 | 3 | / |
| Ooriordan | 78 | 1 | / |
| Oreardon | 71 | 81 | / |
| Orierdan | 71 | 0 | / |
| O'Reardan | 67 | 0 | / |
Search for Another Surname
The name statistics are still in development, sign up for information on more maps and data
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'Riordon
- 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