Callahan

Callahan is the 682nd most common surname in the United States, shared by 48,861 people at the 2020 census. That is about one person in 6,117.

By the numbers

People: 48,861
Rank: 682nd
How common: 1 in 6,117
Per 100,000: 16.4

Where the name comes from

Origin Irish

From Irish Ó Ceallacháin, from Ceallachán, diminutive of the given name Ceallach.

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

Who bears the name

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

White, not Hispanic 86.8%
Black, not Hispanic 5.2%
Two or more races, not Hispanic 3.5%
Hispanic or Latino 3.3%
Asian or Pacific Islander, not Hispanic 0.7%
American Indian or Alaska Native, not Hispanic 0.5%

Notable people called Callahan

Ryan Callahan (born 1985)American ice hockey player
Bill Callahan (born 1966)American singer-songwriter and guitarist
Steven Callahan (born 1952)American sailor and writer
John Callahan (1953–2020)American actor
Harry Callahan (1912–1999)American photographer

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

Surnames like Callahan

Also a first name

Callahan has been given to 7,031 American babies as a first name since 1983, peaking in 2025. 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.