Moriarty Surname

22,180th
Most Common
surname in the World

Approximately 24,517 people bear this surname

Most prevalent in:
United States
Highest density in:
Ireland

Moriarty Surname Definition:

(Celtic) Sea-Right or Sea-True [Irish Muircheartach-muir, sea + the aspirated form of ceart, right, justice, true + the pers. suff. -ach]

Read More About This Surname

Moriarty Surname Distribution Map

PlaceIncidenceFrequencyRank in Area
United States14,9231:24,2893,066
Ireland3,4041:1,383280
England2,5111:22,1903,104
Australia1,5241:17,7142,484
Canada9061:40,6685,067
New Zealand3461:13,0882,276
South Africa2671:202,91321,677
Scotland1381:38,7963,683
Wales1091:28,3902,914
Thailand541:1,308,118185,513
Russia411:3,515,196179,721
Germany341:2,367,808122,173
Dominican Republic311:336,54611,471
Northern Ireland291:63,6224,809
Isle of Man291:2,959610
France261:2,554,720189,486
Belgium171:676,27358,718
Spain81:5,844,00486,878
China81:170,915,1968,932
Guam81:20,0153,029
Brazil81:26,759,292405,030
Netherlands71:2,412,45494,797
Malaysia61:4,915,704170,578
Sweden51:1,969,351134,077
Jersey51:19,8403,614
Hong Kong41:1,833,8716,220
Indonesia41:33,062,298643,618
Portugal41:2,604,56016,079
Philippines41:25,309,556279,062
Japan41:31,961,07353,820
Guernsey41:16,1101,225
South Korea31:17,080,0852,793
Ecuador31:5,301,94930,184
Kazakhstan31:5,894,165166,702
Mexico21:62,063,10283,384
Belarus21:4,750,530139,516
Taiwan21:11,722,37363,559
United Arab Emirates21:4,581,13693,443
United States Virgin Islands11:110,3756,934
Bahamas11:391,7512,737
Zimbabwe11:15,438,240133,260
Uzbekistan11:30,929,14267,786
Armenia11:2,930,18022,770
Ukraine11:45,522,696503,646
Bahrain11:1,348,60810,432
Austria11:8,515,435118,036
Vanuatu11:263,2762,086
Argentina11:42,743,414282,706
Czechia11:10,633,469206,023
Vietnam11:92,646,0548,382
Albania11:2,914,05529,474
Monaco11:37,0664,748
Croatia11:4,228,60499,289
Finland11:5,496,70284,025
Georgia11:3,745,54547,852
Hungary11:9,816,27773,288
India11:767,065,3821,851,717
Chile11:17,616,47493,597
Italy11:61,156,688199,583
Kenya11:46,179,900103,372
Luxembourg11:580,54215,155
Singapore11:5,507,70347,049
Nicaragua11:6,021,0908,768
Norway11:5,142,286129,201
Panama11:3,912,25817,195
Poland11:38,008,749231,653
Qatar11:2,357,99976,403
Romania11:20,077,87089,414
Bolivia11:10,616,43417,077
Saudi Arabia11:30,855,81763,028
PlaceIncidenceFrequencyRank in Area
Ireland2,7731:1,597304
PlaceIncidenceFrequencyRank in Area
England3211:75,9368,295
Wales171:92,2604,121
Guernsey71:4,665827
Scotland21:1,871,60827,884
PlaceIncidenceFrequencyRank in Area
United States2,2551:22,2702,795

Moriarty (29) may also be a first name.

Moriarty Surname Meaning

From Where Does The Surname Originate? meaning and history

(Celtic) Sea-Right or Sea-True [Irish Muircheartach-muir, sea + the aspirated form of ceart, right, justice, true + the pers. suff. -ach]

Surnames of the United Kingdom (1912) by Henry Harrison

Ó Muircheartaigh Of the same stock as the O’Donoghues and the O’Mahonys this sept has always been intimately asociated with Co. Kerry. IF 230; Map Kerry; Plate XXI

A Guide to Irish Names (1964) by Edward MacLysaght

(Irish) Grandson of Muircheartach (expert navigator).

Dictionary of American Family Names (1956) by Elsdon Coles Smith

User-submitted Reference

From the County of Kerry in Ireland, Moriarty is a shortened Anglicized form of Gaelic Ó Muircheartaigh 'descendant of Muircheartach', a personal name composed of the elements muir 'sea' + ceardach 'skilled', i.e. 'skilled navigator'. A Meath and Monaghan name of the same form is Anglicized as Murtagh.

- ccmoriarty

Moriarty Last Name Facts

Where Does The Last Name Moriarty Come From? nationality or country of origin

Moriarty is more frequently found in The United States than any other country or territory. It can also be rendered as:. Click here to see other possible spellings of this surname.

How Common Is The Last Name Moriarty? popularity and diffusion

It is the 22,180th most frequently occurring family name throughout the world, borne by approximately 1 in 297,245 people. The last name Moriarty is mostly found in The Americas, where 65 percent of Moriarty live; 64 percent live in North America and 64 percent live in Anglo-North America. It is also the 1,951,561st most frequently occurring first name worldwide. It is borne by 29 people.

The surname is most frequent in The United States, where it is held by 14,923 people, or 1 in 24,289. In The United States Moriarty is most prevalent in: Massachusetts, where 15 percent live, New York, where 10 percent live and California, where 9 percent live. Besides The United States Moriarty occurs in 69 countries. It also occurs in Ireland, where 14 percent live and England, where 10 percent live.

Moriarty Family Population Trend historical fluctuation

The prevalency of Moriarty has changed over time. In The United States the number of people carrying the Moriarty last name increased 662 percent between 1880 and 2014; in Ireland it increased 123 percent between 1901 and 2014; in England it increased 782 percent between 1881 and 2014; in Scotland it increased 6,900 percent between 1881 and 2014 and in Wales it increased 641 percent between 1881 and 2014.

Moriarty Last Name Statistics demography

The religious devotion of those carrying the Moriarty surname is predominantly Catholic (98%) in Ireland.

In The United States Moriarty are 2.58% more likely to be registered with the Democratic Party than the national average, with 55.81% registered with the political party.

The amount Moriarty earn in different countries varies notably. In South Africa they earn 38.35% more than the national average, earning R 328,764 per year; in United States they earn 18.21% more than the national average, earning $51,006 USD per year and in Canada they earn 14.59% more than the national average, earning $56,931 CAD per year.

Phonetically Similar Names

Search for Another Surname

Moriarty Reference & Research

Moriarty yDNA FamilyTree DNA Group - A group collating DNA test results for those who bear the surname, includes results of DNA tests and discussions.

Moriarty yDNA FamilyTree DNA Project - A description of a group researching the paternal lines of men who bear the surname with the help of DNA analysis.

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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 Moriarty
  • 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