O'Rahilly Surname

763,307th
Most Common
surname in the World

Approximately 374 people bear this surname

Most prevalent in:
Ireland
Highest density in:
Ireland

O'Rahilly Surname Definition:

Ó Raithile This well known Munster family originated as a branch of the Cenél Eoghain in Ulster but has long been closely associated with west Munster.

IF 255; Map Kerry

O'Rahilly Surname Distribution Map

PlaceIncidenceFrequencyRank in Area
Ireland2891:16,2941,804
England601:928,63447,428
United States111:32,950,812797,015
Canada71:5,263,656239,735
Wales61:515,75523,171
South Africa21:27,088,852277,613
New Zealand11:4,528,32355,372
Singapore11:5,507,70347,049
United Arab Emirates11:9,162,273135,437
Zimbabwe11:15,438,240133,260
PlaceIncidenceFrequencyRank in Area
England21:12,187,685173,419

O'Rahilly Surname Meaning

From Where Does The Surname Originate? meaning and history

Ó Raithile This well known Munster family originated as a branch of the Cenél Eoghain in Ulster but has long been closely associated with west Munster.

IF 255; Map Kerry

A Guide to Irish Names (1964) by Edward MacLysaght

O'Rahilly Last Name Facts

Where Does The Last Name O'Rahilly Come From? nationality or country of origin

O'Rahilly is held by more people in Ireland than any other country/territory. It may be rendered in the variant forms:. Click here for further possible spellings of this surname.

How Common Is The Last Name O'Rahilly? popularity and diffusion

This last name is the 763,307th most widespread last name at a global level It is held by approximately 1 in 19,485,417 people. O'Rahilly is primarily found in Europe, where 95 percent of O'Rahilly reside; 95 percent reside in Northern Europe and 95 percent reside in British Isles.

It is most commonly held in Ireland, where it is held by 289 people, or 1 in 16,294. In Ireland it is primarily found in: Munster, where 71 percent live, Leinster, where 19 percent live and Connaught, where 0 percent live. Besides Ireland O'Rahilly occurs in 9 countries. It is also common in England, where 16 percent live and The United States, where 3 percent live.

O'Rahilly Family Population Trend historical fluctuation

The occurrence of O'Rahilly has changed through the years. In England the share of the population with the last name grew 3,000 percent between 1881 and 2014.

Phonetically Similar Names

SurnameSimilarityWorldwide IncidencePrevalency
Orahilly9445/
O'Rahelly893/
Orahile751/
Errahily711/
Orehile631/
Errahili59273/
Errahely591/
Arauilay591/
Ahrouille561/
Otrouille561/
Arohuilla561/
Araijilla561/
Oraeli5350/
Oraele535/
Oraela531/
Aharrouille501/
Arauila501/

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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
  • Descriptions may contain details on the name's etymology, origin, ethnicity and history. They are largely reproduced from 3rd party sources; diligence is advised on accepting their validity - more information
  • 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'Rahilly
  • To find out more about this surname's family history, lookup records on Family​Search, My​Heritage, FindMyPast and Ancestry. Further information may be obtained by DNA analysis