McMahon

At the 2020 census, 38,378 Americans bore the surname McMahon — 893rd out of 156,621 surnames on file. That is about one person in 7,788.

By the numbers

People: 38,378
Rank: 893rd
How common: 1 in 7,788
Per 100,000: 12.8

Where the name comes from

Origin Irish

Anglicized form of Irish Mac Mathúna, earlier spelling Mac Mathghamhna, from Middle Irish mac (“son”) and mathgamain (“bear”).

Etymology from Wiktionary, used under CC BY-SA 4.0.

Who bears the name

How people with the surname McMahon described their own race and Hispanic origin at the 2020 census:

White, not Hispanic 90.3%
Hispanic or Latino 3.3%
Two or more races, not Hispanic 3.0%
Black, not Hispanic 2.4%
Asian or Pacific Islander, not Hispanic 0.8%
American Indian or Alaska Native, not Hispanic 0.2%

Notable people called McMahon

Vince McMahon (born 1945)American professional wrestling promoter
Stephanie McMahon (born 1976)American professional wrestler and executive
Julian McMahon (1968–2025)Australian–American actor
William McMahon (1908–1988)Australian politician, 20th Prime Minister of Australia
Linda McMahon (born 1948)United States Secretary of Education since 2025
Shane McMahon (born 1970)American businessman and professional wrestler
Vincent J. McMahon (1914–1984)American professional wrestling promoter
Steve McMahon (born 1961)English association football player

People named McMahon with articles in the most Wikipedia languages. Data from Wikidata (CC0).

Surnames like McMahon

Try it on yourself

Source: US Census Bureau, Frequently Occurring Surnames, 2020. The Census describes the file as the surnames borne by 100 or more people; rarer names are not published. The line is not quite exact, and 617 published names come in under it, the smallest at 92 people. Race and Hispanic origin are self-reported. Rates are worked out against the 298.9 million people the file's own figures are calculated on, which is fewer than the census counted in all: the difference is everyone whose surname was too rare to publish.