Moriarty

9,750 people in the United States were counted with the surname Moriarty in the 2020 census, making it the 3,567th most common in the country. That is about one person in 30,700.

By the numbers

People: 9,750
Rank: 3,567th
How common: 1 in 30,700
Per 100,000: 3.3

Where the name comes from

Origin Irish

From Irish Ó Muircheartaigh (“descendant of Muircheartach”), a name from muir (“sea”) + ceardaí (“craftsman”).

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

Who bears the name

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

White, not Hispanic 92.8%
Hispanic or Latino 3.3%
Two or more races, not Hispanic 2.4%
Asian or Pacific Islander, not Hispanic 0.8%
Black, not Hispanic 0.4%
American Indian or Alaska Native, not Hispanic 0.2%

Notable people called Moriarty

Erin Moriarty (born 1994)American actress
Cathy Moriarty (born 1960)actress
Michael Moriarty (born 1941)American-Canadian actor and musician
Liane Moriarty (born 1966)Australian author

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

Surnames like Moriarty

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.