Duff

At the 2020 census, 16,177 Americans bore the surname Duff — 2,198th out of 156,621 surnames on file. That is about one person in 18,500.

By the numbers

People: 16,177
Rank: 2,198th
How common: 1 in 18,500
Per 100,000: 5.4

Where the name comes from

From the Irish and Scottish Gaelic surname, from dubh (“dark”).

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

Who bears the name

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

White, not Hispanic 82.4%
Black, not Hispanic 9.0%
Two or more races, not Hispanic 4.1%
Hispanic or Latino 3.3%
Asian or Pacific Islander, not Hispanic 0.9%
American Indian or Alaska Native, not Hispanic 0.3%

Notable people called Duff

Hilary Duff (born 1987)American actress and singer
Damien Duff (born 1979)Irish footballer and manager
Haylie Duff (born 1985)American actress and singer
Anne-Marie Duff (born 1970)British actress
Alexander Duff, 1st Duke of Fife (1849–1912)Scottish politician
Michael Duff (born 1978)Northern Irish association football player and manager
Howard Duff (1913–1990)American actor
Alan Duff (born 1950)New Zealand writer

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

Surnames like Duff

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.