Fennessy Surname

131,390th
Most Common
surname in the World

Approximately 3,441 people bear this surname

Most prevalent in:
United States
Highest density in:
Ireland

Fennessy Surname Definition:

Ó Fionnghusa Mainly of Co. Waterford. IF 313*

Read More About This Surname

Fennessy Surname Distribution Map

PlaceIncidenceFrequencyRank in Area
United States1,3701:264,56924,925
Ireland6951:6,775997
Australia6761:39,9345,167
England3821:145,85914,056
Canada951:387,84834,448
New Zealand811:55,9058,836
South Africa631:859,96456,669
Scotland181:297,43413,849
Wales141:221,03813,576
Austria131:655,03358,041
Northern Ireland91:205,0049,958
Mexico51:24,825,24158,251
Jersey31:33,0674,675
United States Virgin Islands31:36,7924,502
Thailand21:35,319,172966,191
Namibia21:1,204,70016,113
United Arab Emirates11:9,162,273135,437
Argentina11:42,743,414282,706
France11:66,422,722504,397
Germany11:80,505,459560,955
India11:767,065,3821,851,717
Switzerland11:8,212,915156,297
Spain11:46,752,036156,870
Kenya11:46,179,900103,372
Luxembourg11:580,54215,155
Netherlands11:16,887,176156,465
PlaceIncidenceFrequencyRank in Area
Ireland3461:12,8031,715
PlaceIncidenceFrequencyRank in Area
England311:786,30235,304
Wales41:392,10412,338
Scotland11:3,743,21632,299
PlaceIncidenceFrequencyRank in Area
United States1231:408,28230,178

Fennessy (10) may also be a first name.

Fennessy Surname Meaning

From Where Does The Surname Originate? meaning and history

Ó Fionnghusa Mainly of Co. Waterford. IF 313*

A Guide to Irish Names (1964) by Edward MacLysaght

Ó Fionnghusa Mainly of Co. Waterford. IF 313*

A Guide to Irish Names (1964) by Edward MacLysaght

(Irish) Grandson of Fionnghus (fair choice).

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

User-submitted Reference

The surname Fennessy is an Anglicized form of the Irish Gaelic surname, O'Fiangussy, which means 'son of Finn' or 'warrior of Finn'.

- dhughes3

Fennessy Last Name Facts

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

The last name Fennessy is carried by more people in The United States than any other country or territory. It can also be found as a variant:. Click here to see other potential spellings of this last name.

How Common Is The Last Name Fennessy? popularity and diffusion

The last name is the 131,390th most widespread surname internationally. It is borne by around 1 in 2,117,857 people. This last name occurs mostly in Europe, where 33 percent of Fennessy reside; 33 percent reside in Northern Europe and 33 percent reside in British Isles. Fennessy is also the 3,684,242nd most frequently occurring given name on earth, borne by 10 people.

The last name is most numerous in The United States, where it is held by 1,370 people, or 1 in 264,569. In The United States it is primarily found in: Massachusetts, where 9 percent live, Illinois, where 7 percent live and Florida, where 6 percent live. Aside from The United States it exists in 25 countries. It also occurs in Ireland, where 20 percent live and Australia, where 20 percent live.

Fennessy Family Population Trend historical fluctuation

The incidence of Fennessy has changed over time. In The United States the number of people bearing the Fennessy surname rose 1,114 percent between 1880 and 2014; in Ireland it rose 201 percent between 1901 and 2014; in England it rose 1,232 percent between 1881 and 2014; in Scotland it rose 1,800 percent between 1881 and 2014 and in Wales it rose 350 percent between 1881 and 2014.

Fennessy Last Name Statistics demography

The religious devotion of those carrying the Fennessy last name is predominantly Catholic (100%) in Ireland.

In The United States those holding the Fennessy last name are 3.39% more likely to be registered Republicans than The US average, with 50.16% being registered to vote for the party.

The amount Fennessy earn in different countries varies greatly. In South Africa they earn 577.53% more than the national average, earning R 1,610,060 per year; in United States they earn 13.04% more than the national average, earning $48,776 USD per year and in Canada they earn 11.87% more than the national average, earning $55,582 CAD per year.

Phonetically Similar Names

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Fennessy Reference & Research

Fennessy DNA Website - A web page dedicated to the genetic research of those who bear the surname and its variants.

Fennessy 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 Fennessy
  • 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