Show ContentsLahey History, Family Crest & Coats of Arms

While many of Irish names are quite familiar to most, their original Gaelic forms are often forgotten and mysterious. The original Gaelic form of the name Lahey is Ó Laochdha, which is derived from the word laochdha, which means heroic. 1

Early Origins of the Lahey family

The surname Lahey was first found in County Tipperary (Irish: Thiobraid Árann), established in the 13th century in South-central Ireland, in the province of Munster, where they held a family seat from very ancient times, and were descended from the tribe of Uaithne.

Early History of the Lahey family

This web page shows only a small excerpt of our Lahey research. Another 144 words (10 lines of text) covering the years 1172, 1270, 1420 and 1641 are included under the topic Early Lahey History in all our PDF Extended History products and printed products wherever possible.

Lahey Spelling Variations

Many different spelling variations of the surname Lahey were found in the archives researched. These included Scribes and church officials generally spelled a name as it sounded; as a result, a person's name could be spelt innumerable ways in his lifetime. Leahy, Leahey, Leghe, Lahey, Lahy, O'Leahy and others.

Early Notables of the Lahey family

More information is included under the topic Early Lahey Notables in all our PDF Extended History products and printed products wherever possible.

Lahey Ranking

In the United States, the name Lahey is the 14,018th most popular surname with an estimated 2,487 people with that name. 2 However, in Newfoundland, Canada, the name Lahey is ranked the 447th most popular surname with an estimated 105 people with that name. 3


United States Lahey migration to the United States +

North America received thousands of Irish immigrants from the English-ruled Ireland during the 19th century. Once in the United States or what would become Canada, these immigrants quickly contributed to the ongoing settling and industrialization processes. The largest influx of Irish settlers occurred with Great Potato Famine of the late 1840s. An exhaustive examination of immigrant and passenger lists has shown many early immigrants bearing the surname of Lahey:

Lahey Settlers in United States in the 17th Century
  • Arthur Lahey, who settled in Virginia in 1649
Lahey Settlers in United States in the 19th Century
  • James, Thomas, and William Lahey, who settled in Boston Massachusetts between 1848 and 1849
  • Andrew, Dennis, James, Patrick Lahey all, who landed in Philadelphia, Pennsylvania between 1833 and 1868

Canada Lahey migration to Canada +

Some of the first settlers of this family name were:

Lahey Settlers in Canada in the 19th Century
  • Catherine Lahey, who arrived in Saint John, New Brunswick aboard the ship "Robert Burns" in 1834

Australia Lahey migration to Australia +

Emigration to Australia followed the First Fleets of convicts, tradespeople and early settlers. Early immigrants include:

Lahey Settlers in Australia in the 19th Century
  • Mr. Thomas Lahey, Welsh convict who was convicted in Monmouth, Monmouthshire, Wales for life, transported aboard the "Duncan" on 10th December 1840, arriving in Tasmania (Van Diemen's Land) 4
  • Elizabeth Lahey, aged 18, a servant, who arrived in South Australia in 1855 aboard the ship "Lismoyne"

Contemporary Notables of the name Lahey (post 1700) +

  • Timothy William "Tim" Lahey (b. 1982), American minor league baseball relief pitcher
  • John L. Lahey (b. 1946), American academic, President of Quinnipiac University
  • John C. Lahey (b. 1953), American architect, Chairman and a Principal in Charge of Design for Solomon Cordwell Buenz (SCB)
  • Lyle Lahey, American political cartoonist
  • Raymond J. Lahey (b. 1904), American Democratic Party politician, Member of Missouri State House of Representatives from St. Louis City 5th District, 1943-46 5
  • Matthew J. Lahey, American Republican politician, Mayor of Laconia, New Hampshire, 1996-2002 5
  • Romeo Watkins Lahey MBE (1887-1968), Australian businessman, civil servant and conservationist

Halifax Explosion
  • Mr. Frank Dennis  Lahey, Canadian resident from Halifax, Nova Scotia, Canada who survived the Halifax Explosion (1917) but later died due to injuries 6
Winter Quarters coal mine
  • Mr. John Lahey, who worked in the Winter Quarters coal mine on 1st May 1900, when 10 of the 25lb kegs of black powder exploded; he died in the explosion 7


The Lahey Motto +

The motto was originally a war cry or slogan. Mottoes first began to be shown with arms in the 14th and 15th centuries, but were not in general use until the 17th century. Thus the oldest coats of arms generally do not include a motto. Mottoes seldom form part of the grant of arms: Under most heraldic authorities, a motto is an optional component of the coat of arms, and can be added to or changed at will; many families have chosen not to display a motto.

Motto: Tout vient de dieu
Motto Translation: All comes from God.


  1. MacLysaght, Edward, The Surnames of Ireland. Ireland: Irish Academic Press, sixth edition, 1985. Print. (ISBN 0-7165-2366-3)
  2. "What are the 5,000 Most Common Last Names in the U.S.?". NameCensus.com, https://namecensus.com/last-names/
  3. The order of Common Surnames in 1955 in Newfoundland retrieved on 20th October 2021 (retrieved from Family Names of the Island of Newfoundland by E.R. Seary corrected edition ISBN 0-7735-1782-0)
  4. Convict Records Voyages to Australia (Retrieved 11th August 2021). Retrieved from https://convictrecords.com.au/ships/duncan
  5. The Political Graveyard: Alphabetical Name Index. (Retrieved 2016, February 1) . Retrieved from http://politicalgraveyard.com/alpha/index.html
  6. Halifax Explosion Book of Remembrance | Maritime Museum of the Atlantic. (Retrieved 2014, June 23) . Retrieved from https://maritimemuseum.novascotia.ca/what-see-do/halifax-explosion/halifax-explosion-book-remembrance
  7. Miners killed in Winter Quarters (retrieved 28th July 2021). Retrieved from http://www.carbon-utgenweb.com/miners.html


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