Mulcahy

6,466 people in the United States were counted with the surname Mulcahy in the 2020 census, making it the 5,216th most common in the country. That is about one person in 46,200.

By the numbers

People: 6,466
Rank: 5,216th
How common: 1 in 46,200
Per 100,000: 2.2

Where the name comes from

Origin Irish

Reduced Anglicized form of Irish Ó Maolchathaigh (“descendant of the devotee of (Saint) Cathach”), a byname from cathachyss (“warlike”).

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

Who bears the name

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

White, not Hispanic 92.6%
Hispanic or Latino 3.3%
Two or more races, not Hispanic 2.9%
Asian or Pacific Islander, not Hispanic 0.7%
Black, not Hispanic 0.4%
American Indian or Alaska Native, not Hispanic 0.1%

Notable people called Mulcahy

Russell Mulcahy (born 1953)Australian film director
Richard Mulcahy (1886–1971)Irish politician
John Mulcahy (1876–1942)American rower

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

Surnames like Mulcahy

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.