O'calahan Surname
10,311,814th
Most Common
surname in the World
Approximately 3 people bear this surname
Most prevalent in:
United States
Highest density in:
United States
O'calahan Surname Distribution Map
| Place | Incidence | Frequency | Rank in Area |
|---|---|---|---|
| United States | 3 | 1:120,819,644 | 1,331,040 |
Phonetically Similar Names
| Surname | Similarity | Worldwide Incidence | Prevalency |
|---|---|---|---|
| O'Callahan | 95 | 341 | / |
| Ocalahan | 94 | 1 | / |
| Ocallahan | 89 | 391 | / |
| Ocalhan | 88 | 0 | / |
| O'Kallahan | 84 | 1 | / |
| Ecalahan | 82 | 1 | / |
| Ocallhan | 82 | 1 | / |
| O'Callan | 82 | 1 | / |
| Okalahan | 82 | 0 | / |
| Ocalan | 80 | 214 | / |
| Ecallahan | 78 | 1 | / |
| O'Callean | 78 | 1 | / |
| Okallahan | 78 | 0 | / |
| Ozalhan | 75 | 18 | / |
| Ocalyan | 75 | 3 | / |
| Ocalian | 75 | 3 | / |
| Ocallan | 75 | 2 | / |
| Oecalan | 75 | 2 | / |
| Asolahan | 71 | 6 | / |
| Akolahan | 71 | 4 | / |
| Ocallean | 71 | 4 | / |
| Okelahan | 71 | 2 | / |
| Gokalahn | 71 | 1 | / |
| Ocallgan | 71 | 0 | / |
| Öcalan | 67 | 5,918 | / |
| Okalan | 67 | 64 | / |
| Ecalan | 67 | 61 | / |
| Ocalon | 67 | 35 | / |
| Ozalan | 67 | 29 | / |
| Acalan | 67 | 7 | / |
| Osalan | 67 | 1 | / |
| O'Scollan | 67 | 1 | / |
| Ojalan | 67 | 1 | / |
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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'calahan
- 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