Reilly

Reilly is the 853rd most common surname in the United States, shared by 39,645 people at the 2020 census. That is about one person in 7,539.

By the numbers

People: 39,645
Rank: 853rd
How common: 1 in 7,539
Per 100,000: 13.3

Where the name comes from

Origin Irish

From Irish Ó Raghallaigh, a surname meaning "descendants of Raghallach".

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

Who bears the name

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

White, not Hispanic 92.5%
Hispanic or Latino 3.5%
Two or more races, not Hispanic 2.4%
Asian or Pacific Islander, not Hispanic 0.9%
Black, not Hispanic 0.6%
American Indian or Alaska Native, not Hispanic 0.1%

Notable people called Reilly

John C. Reilly (born 1965)American actor
Kelly Reilly (born 1977)British actress
Maggie Reilly (born 1956)British singer
Sidney Reilly (1873–1925)Russian-born adventurer and secret agent
Charles Nelson Reilly (1931–2007)American comedian and actor
James F. Reilly (born 1954)American astronaut
Matthew Reilly (born 1974)Australian author
Kieran Reilly (born 2001)British bicycle motocross rider

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

Surnames like Reilly

Also a first name

Reilly has been given to 10,088 American babies as a first name since 1953, peaking in 1998. See it as a given name.

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.