# Dugan (surname)

Source: https://namelineage.com/surname/dugan/  
Publisher: Name Lineage. Counts from the US Census Bureau; origin and etymology from Wiktionary; bearers from Wikidata. Data updated 2026-11-11.

A surname from Irish.

| Field | Value |
|---|---|
| Origin | Irish |
| Type | patronymic, formed from a father’s (or ancestor’s) given name |
| People in the US (2010 Census) | 21,455 |
| US rank (2010) | 1,679 of 162,253 |
| How often | about 1 in every 14,390 people |
| Change since 2000 | +0.9% (21,267 in 2000) |
| Pronunciation | not recorded |
| Variant spellings | Duggan |

## Etymology

Reduced Anglicized form of Irish Ó Dubhagáin (“descendant of Dubhagán”), a personal name based on a double diminutive of dubh (“black”).

## Who carries it

Share of people named Dugan in the 2010 US Census by the Census's own race and ethnicity groups. The Census suppresses a share when the count behind it is small.

| Group | Share |
|---|---|
| White (not Hispanic) | 91% |
| Black (not Hispanic) | 3.2% |
| Hispanic or Latino (any race) | 2.7% |
| Asian and Pacific Islander | 1.0% |
| American Indian and Alaska Native | 0.5% |
| Two or more races | 1.5% |

## Where

Wikidata records people named Dugan in the United States.

## People named Dugan

- Dennis Dugan, American actor and film director (born 1946)
- Raymond Smith Dugan, American astronomer (1878–1940)
- John Dugan, American actor
- Regina E. Dugan, American businesswoman, inventor, and technology developer
- Hannah Dugan, American judge currently county judge in Milwaukee

## Similar surnames

Duggan, Deegan, Dougan, Dogan, Dagan, Dixon, Dawson, Dickson, Dyson, Dizon, Deason, Dixson.

## How to read these numbers

A Census count is people alive and counted in 2010, not births, and names occurring fewer than 100 times are not published at all. Ethnicity shares are the Census's own categories.