Leahy Family History

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Leahy Name Meaning

Irish: reduced Anglicized form of Gaelic Ó Laochdha ‘descendant of Laochdha’, a personal name derived from laoch ‘hero’.

Source: Dictionary of American Family Names ©2013, Oxford University Press

Similar surnames: Leddy, Leary, Keady, Keary, Heaphy, Leavy, Neary, Leavey, Keahey

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Leahy Ethnicity Estimate

What are the common regions with the Leahy name?

These results combine data from everyone in the AncestryDNA® database with the last name Leahy. The Ancestry® ethnicity regions shown are top five most common on average for these people.

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  • Ireland & Scotland


  • England & Wales


  • Germanic Europe


  • Eastern Europe & Russia


  • France


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Leahy Family Origin

Where is the Leahy family from?

Leahy Family Occupations

What did your Leahy ancestors do for a living?

In 1880, the most common Leahy occupation in the USA was Laborer. 21% of Leahy's were Laborers. A less common occupation for the Leahy family was Carpenter. Laborer, Farmer and Keeping House were the top 3 reported jobs worked by Leahy.

View Census data for Leahy | Data not to scale

  • Laborer

  • Farmer

  • Keeping House

  • Carpenter


Census records can tell you a lot of little known facts about your Leahy ancestors, such as occupation. Occupation can tell you about your ancestor's social and economic status.

Leahy Historical Records

What Leahy family records will you find?

Census Record

There are 96,000 census records available for the last name Leahy. Like a window into their day-to-day life, Leahy census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.

Search 1940's US census records for Leahy

Passenger List

There are 20,000 immigration records available for the last name Leahy. Passenger lists are your ticket to knowing when your ancestors arrived in the USA, and how they made the journey - from the ship name to ports of arrival and departure.

View all Leahy immigration records

Draft Card

There are 17,000 military records available for the last name Leahy. For the veterans among your Leahy ancestors, military collections provide insights into where and when they served, and even physical descriptions.

View all Leahy military records

You've only scratched the surface of Leahy family history.

Leahy Life Expectancy

What is the average Leahy lifespan?

Between 1942 and 2004, in the United States, Leahy life expectancy was at its lowest point in 1949, and highest in 2004. The average life expectancy for Leahy in 1942 was 53, and 78 in 2004.

View Social Security Death Index (SSDI) for Leahy

An unusually short lifespan might indicate that your Leahy ancestors lived in harsh conditions. A short lifespan might also indicate health problems that were once prevalent in your family. The SSDI is a searchable database of more than 70 million names. You can find birthdates, death dates, addresses and more.

Famous Leahy Family Ancestors

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