This article looks at how common Kenny is as a last name in Ireland and the United States from the 19th century to the present day.
You’ll learn the meaning and origins of the Kenny surname while exploring some notable and famous people that held it.
I use census records, emigration lists, and military archives to uncover fascinating patterns. If you’re studying your genealogy, check out my sources at the end of the post so you can do your own research.
How Common Is Kenny As A Surname In Ireland?
Detailed current statistics about surnames are not publicly released by the Irish government. Instead, they offer the ten most frequently occurring surnames among newborns in the previous year. Kenny
However, an Irish genealogist studied the top one hundred surname numbers in Ireland between 1992 and 1997. Seán Murphy based his research on telephone books. This isn’t as accurate as a census but gives a good approximation.
Kenny was ranked 69 in the top one hundred names in this decade with a total of 11,800 entries.
This graphic shows how it ranks compared to the 1st, 33rd, 66th, and 100th entries in the survey:
Kenny In The Early 1900s
Only the full censuses from 1911 and 1901 in Ireland are available to the public. Earlier decades were either destroyed by the government (to make room for more storage) or by a huge fire during the Irish Civil War. Later decades are unavailable under privacy laws.
So, let’s focus on the early 1900s.
I used online archives to calculate the total numbers by surname. I consider these estimates due to some percentage of transcription errors. So, I’ve rounded the numbers to the nearest fifty.
There were 6,700 residents named Kenny on the island in 1911.
Ten years earlier, Kenny had about 8,850 residents in the 1901 census.
Population Estimates In The 1890s
A study of Irish surnames was conducted in 1890 by the head of the Civil Registrations Office. It was published as a “Special Report on Surnames In Ireland.”
The survey estimated that there were about 9,600 people named Kenny in the country.
Emigration To America After The Irish Famine
The Irish diaspora is large and widespread with a significant number of people emigrating to other parts of the globe. The destinations traditionally have been England, the U.S., Canada, and Australia. Emigrants were driven by various factors like political unrest, poverty, and food scarcity.
The largest wave of emigration to the United States occurred during the 19th century. The peak was in response to the Great Irish Famine, which took place between 1845 and 1852. A plant disease devastated the main food and income crop for much of the population.
I reviewed the Kenny name in the shipping passenger lists arriving in New York during this period. The departures were from both Ireland and England.
This picture shows how the numbers rose and fell in the years after the famine:
How Common Is Kenny As A Last Name In The U.S.?
Based on the 2010 U.S. census, the name Kenny ranks about 2,173 among Irish names in America with 17,429 bearers.
Although the 2010 census has exact numbers and rankings, the rank I assign here is my estimate. If you’re curious about how I got there, here’s a brief explanation…
Estimating Rank In The United States
Historically, some Irish families with Gaelic surnames took English-sounding names as translations under the influence of colonization.
As these names also have English origins, they will have been brought to the United States by both British and Irish immigrants. Because the census doesn’t ask about specific European origin (e.g. England vs Ireland), it’s impossible to identify the proportion with Irish heritage.
I reviewed the census to identify which names are predominantly Irish in origin. In order to estimate the relative rankings of “Irish” names, I’ve mostly excluded surnames that have varying origins.
Kenny In Historic Times
It is fascinating to examine how the prevalence of a surname shifts over the course of time in a country as young as the United States. As well as immigration, this reflects other demographic shifts across the nation. Factors include higher child mortality rates and longer life expectancy.
The historic census records have been transcribed and digitized. I used online archives to run counts of surname populations.
But the totals can’t be exactly accurate due to transcription errors. So, I’ve rounded the numbers to the nearest 50 in the graph below.
This picture shows the numbers every twenty years from 1860 to 1940:
These are the numbers in the graph:
- 1860: 4,800
- 1880: 6,050
- 1900: 8,000
- 1920: 9,250
- 1940: 12,000
Kenny In World War II
During World War Two, approximately 8.3 million men and women joined the ranks of the United States Army. Many were of Irish descent. Some had even been born in Ireland and emigrated.
There were registration records for 568 soldiers named Kenny who enlisted between 1938 and 1946.
There were 24 who were born in Ireland.
Kenny Surname: Meaning And Origin
Kenny comes from a Gaelic surname spelled as “Ó Cionnaith” or “Ó Cionaodha”. The Ó in an Irish name means “descendant of”.
The meaning of the personal name Cionnaith is debated, but it may refer to something that was born from fire. There are several different early families with the name, particularly in Connacht and in Leitrim.
A 6th century abbott known as Cainnech of Aghaboe preached Christianity across Ireland and Scotland. Legend has it that he led an army to overpower the last druids in Ireland who were holding out in the centre of the island. The town and county of Kilkenny are named after him.
Famous Or Historic People Named Kenny
Here are some notable people with the family name:
- Elizabeth Kenny (1880 – 1952): an Australian nurse with an Irish father, she developed massage techniques for polio patients that were highly influential on modern physical therapy.
- William Kenny (1880 – 1936): born in Louth, he was a drummer in a British Army regiment during the First World War. He was awarded the Victoria Cross for repeatedly carrying wounded comrades to safety under heavy fire.
- Enda Kenny (1951 – ): an Irish politician from County Mayo who served as Taoiseach (Prime Minister) from 2011 to 2017.
The Ireland 1990s estimates are from Seán J. Murphy’s research paper.
The population estimates of 1890 are based on the “Special Report on Surnames in Ireland“, published in 1909.
The population figures for the 2010 U.S. Census come from a file provided by the U.S. Census Bureau.
Some of the population numbers are based on my own research and calculations using online archives. I’ve rounded those numbers to the nearest 50 to account for transcription errors and other technical issues with online databases of this type.
The Irish census estimates for 1901 and 1911 are my calculations based on the Irish National Archives
I plotted the emigration figures from 1845 to 1854 based on calculations from the archives of the New York Passenger Lists (1820-1957).