Show ContentsKavanaugh History, Family Crest & Coats of Arms

Irish names tend to vary widely in their spelling and overall form. The original Gaelic form of the name Kavanaugh is Caomhanach, an adjective denoting association with St. Caomhan. The first Kavanagh, Donal, the son of Dermot MacMurrough, was fostered by a successor of this saint.

Early Origins of the Kavanaugh family

The surname Kavanaugh was first found in County Carlow (Irish: Cheatharlach) a small landlocked area located in the province of Leinster in the South East of Ireland, where they held a family seat from very ancient times.

Early History of the Kavanaugh family

This web page shows only a small excerpt of our Kavanaugh research. Another 141 words (10 lines of text) covering the year 1889 is included under the topic Early Kavanaugh History in all our PDF Extended History products and printed products wherever possible.

Kavanaugh Spelling Variations

Spelling variations of this family name include: Cavanagh, Kavanagh, Kavanah, Cavanaugh, Keevan, Cavanaw, Kavanaw, Cavenaugh, Cavanough, Cavaneagh, Cavana, Cavena, Cavinaugh, Kavina, Kavena, Kavanaugh, Cavanach, Kavanach, Cabenagh, O'Cavanagh, O'Kavanagh, Keaveney, Geaveney, M'Cavanna and many more.

Early Notables of the Kavanaugh family

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

Kavanaugh Ranking

In the United States, the name Kavanaugh is the 7,325th most popular surname with an estimated 4,974 people with that name. 1


United States Kavanaugh migration to the United States +

Some of the first settlers of this family name were:

Kavanaugh Settlers in United States in the 19th Century
  • Maggie Kavanaugh, aged 17, who arrived in New York in 1892 aboard the ship "City of Berlin" from Liverpool, England 2
  • Arthur Kavanaugh, aged 28, who arrived in New York in 1893 aboard the ship "Britannic" from Liverpool, England 2
  • Thomas Kavanaugh, aged 26, who arrived in New York in 1896 aboard the ship "Umbria" from Liverpool, England 2
  • Michael Kavanaugh, aged 25, who arrived in New York in 1899 aboard the ship "Campania" from Queenstown 2
Kavanaugh Settlers in United States in the 20th Century
  • Michael Kavanaugh, aged 26, who arrived in New York in 1919 aboard the ship "Mauretania" from Southampton, England 2
  • John Kavanaugh, aged 19, who arrived in New York, N. Y. in 1919 aboard the ship "Mexico" from Havana 2
  • Frank Kavanaugh, who arrived in New York in 1919 aboard the ship "Le Coq" from Newport, England 2
  • Michael Kavanaugh, who arrived in New York in 1919 aboard the ship "Lapland" from Southampton, England 2
  • Rose Kavanaugh, aged 53, who arrived in New York in 1920 aboard the ship "Zacapa" from Santiago, Cuba 2
  • ... (More are available in all our PDF Extended History products and printed products wherever possible.)

Contemporary Notables of the name Kavanaugh (post 1700) +

  • Frederick W. Kavanaugh (1871-1940), American businessman and politician, member of the New York State Senate (1921-1924)
  • Ashley Estes Kavanaugh, American Personal Secretary to the President for US President George W. Bush (2000-2004)
  • William Marmaduke Kavanaugh (1866-1915), American politician, United States Senator from Arkansas in 1913
  • Patrick Kavanaugh (b. 1954), American composer, conductor, and the author of many books
  • Walter J. Kavanaugh (1933-2008), American Republican Party politician
  • Ryan Kavanaugh (b. 1974), American film producer and entrepreneur, ranked No. 19 on Forbes's 2013 list of youngest billionaires
  • Ken Kavanaugh (1916-2007), American football player, coach and scout
  • Brett Michael Kavanaugh (b. 1965), American federal judge on the United States Court of Appeals
  • Charles C. Kavanaugh, American Democratic Party politician, Postmaster at Little Rock, Arkansas, 1933-38 (acting, 1933-34) 3
  • C. W. Kavanaugh, American Democratic Party politician, Delegate to Democratic National Convention from Kentucky, 1904, 1908, 1912 (alternate) 3
  • ... (Another 12 notables are available in all our PDF Extended History products and printed products wherever possible.)

SS Atlantic
  • Sarah Kavanaugh, who was traveling aboard the ship "SS Atlantic" when it struck rocks off Nova Scotia in 1873, died in the sinking


The Kavanaugh 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: Siothchain agus fairsinge
Motto Translation: Peace and plenty.


  1. "What are the 5,000 Most Common Last Names in the U.S.?". NameCensus.com, https://namecensus.com/last-names/
  2. Ellis Island Search retrieved 15th November 2022. Retrieved from https://heritage.statueofliberty.org/passenger-result
  3. The Political Graveyard: Alphabetical Name Index. (Retrieved 2015, October 6) . Retrieved from http://politicalgraveyard.com/alpha/index.html


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