# Donegan (surname)

Source: https://namelineage.com/surname/donegan/  
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) | 4,372 |
| US rank (2010) | 7,601 of 162,253 |
| How often | about 1 in every 70,619 people |
| Change since 2000 | +7.8% (4,056 in 2000) |
| Pronunciation | not recorded |
| Variant spellings | Dunnagan |

## Etymology

Reduced Anglicized form of Irish Ó Donnagáin (“descendant of Donnagán”), a personal name derived from a double diminutive of donn (“brown”).

## Who carries it

Share of people named Donegan 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) | 86% |
| Black (not Hispanic) | 9.6% |
| Hispanic or Latino (any race) | 2.2% |
| Asian and Pacific Islander | 0.5% |
| American Indian and Alaska Native | 0.2% |
| Two or more races | 1.8% |

## Where

Wikidata records people named Donegan in the United States.

## People named Donegan

- Dan Donegan, American guitarist
- Dorothy Donegan, American jazz pianist (1922–1998)

## Similar surnames

Dungan, Dunigan, Dingman, Donjuan, Duncan, Dennison, Denson, Denison, Dinkins, Dinsmore, Dunson, Densmore.

## 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.