# O'Connor (surname)

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

A patrilineal 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) | 77,923 |
| US rank (2010) | 417 of 162,253 |
| How often | about 1 in every 3,962 people |
| Change since 2000 | +4.2% (74,756 in 2000) |
| Pronunciation | not recorded |
| Variant spellings | none recorded |

## Etymology

Anglicisation of Irish Ó Conchúir, meaning "descendant of Conor".

## Who carries it

Share of people named O'Connor 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) | 93% |
| Black (not Hispanic) | 2.1% |
| Hispanic or Latino (any race) | 2.6% |
| Asian and Pacific Islander | 0.8% |
| American Indian and Alaska Native | 0.3% |
| Two or more races | 1.4% |

## Where

Wikidata records people named O'Connor in the United States, the United Kingdom, Australia and Kenya.

## People named O'Connor

- Flannery O'Connor, American writer (1925–1964)
- Sandra Day O'Connor, American lawyer and jurist (1930–2023)
- Donald O'Connor, American dancer, singer, and actor (1925-2003)
- Josh O'Connor, British actor (born 1990)
- Carroll O'Connor, American actor (1924–2001)
- Frances O'Connor, Australian actress
- Ben O'Connor, Australian cyclist
- Kevin J. O'Connor, American actor
- Richard O'Connor, British Army general (1889-1981)
- Gavin O'Connor, American film director, screenwriter, producer, playwright and actor (b. 1963)
- Tim O'Connor, American actor (1927-2018)
- John Joseph O'Connor, American Cardinal, Archbishop of New York (1920–2000)

and 21 more on Wikidata.

## Similar surnames

O'Conner, Ochsner, Okamura.

## 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.