Mcmahon Family History

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Mcmahon Name Meaning

Irish: Anglicized form of Gaelic Mac Mathghamhna, a patronymic from the byname Mathghamhain meaning ‘good calf’. This was the name of two (unrelated) chieftain families in counties Clare and Monaghan. In northern Ireland it is sometimes Anglicized as Matthews, since Matha was the Irish form of the Biblical name.

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

Similar surnames: Mccahon, Mahon, Mcgahan, Mcelhone, Monahan, Mclaren, Mcmahill

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Mcmahon Ethnicity Estimate

What are the common regions with the Mcmahon name?

These results combine data from everyone in the AncestryDNA® database with the last name Mcmahon. 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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Mcmahon Family Origin

Where is the Mcmahon family from?

Mcmahon Family Occupations

What did your Mcmahon ancestors do for a living?

In 1881, a less common occupation for the Mcmahon family was Bricklayers Labourer. The most common Mcmahon occupation in the UK was Labourer. 10% of Mcmahon's were Labourers. Labourer, Tailor and Coal Miner were the top 3 reported jobs worked by Mcmahon.

View Census data for Mcmahon | Data not to scale

  • Labourer

  • Tailor

  • Coal Miner

  • Bricklayers Labourer


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

Mcmahon Historical Records

What Mcmahon family records will you find?

Census Record

There are 302,000 census records available for the last name Mcmahon. Like a window into their day-to-day life, Mcmahon census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.

Search 1891 UK census records for Mcmahon

Passenger List

There are 59,000 immigration records available for the last name Mcmahon. Passenger lists are your ticket to knowing when your ancestors arrived in the UK, and how they made the journey - from the ship name to ports of arrival and departure.

View all Mcmahon immigration records

Draft Card

There are 54,000 military records available for the last name Mcmahon. For the veterans among your Mcmahon ancestors, military collections provide insights into where and when they served, and even physical descriptions.

View all Mcmahon military records

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

Mcmahon Life Expectancy

What is the average Mcmahon lifespan?

Between 1941 and 2004, in the United States, Mcmahon life expectancy was at its lowest point in 1941, and highest in 2004. The average life expectancy for Mcmahon in 1941 was 36, and 77 in 2004.

View Social Security Death Index (SSDI) for Mcmahon

An unusually short lifespan might indicate that your Mcmahon 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 Mcmahon Family Ancestors

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