# O'Gara (surname)

Source: https://namelineage.com/surname/ogara/  
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) | 1,849 |
| US rank (2010) | 15,763 of 162,253 |
| How often | about 1 in every 166,980 people |
| Change since 2000 | -0.9% (1,866 in 2000) |
| Pronunciation | not recorded |
| Variant spellings | none recorded |

## Etymology

Anglicized form of Irish Ó Gadhra (“descendant of Gadhra”), a personal name derived from gadhar (“hound, mastiff”).

## Who carries it

Share of people named O'Gara 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) | 95% |
| Black (not Hispanic) | 0.7% |
| Hispanic or Latino (any race) | 2.3% |
| Asian and Pacific Islander | 1.1% |
| American Indian and Alaska Native | 0.3% |
| Two or more races | 0.9% |

## Similar surnames

Osorio, Oshiro, Oscar, Okoro, Ocker, Oser, Osoria, Osier, Ozer.

## 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.