# McCullough (surname)

Source: https://namelineage.com/surname/mccullough/  
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; variant forms McCalla, McColley, McCollough, McCullagh, McCullah, McCulloch, McCulloh, McCully.

| Field | Value |
|---|---|
| Origin | Irish |
| Type | not recorded |
| People in the US (2010 Census) | 45,852 |
| US rank (2010) | 755 of 162,253 |
| How often | about 1 in every 6,734 people |
| Change since 2000 | +3.9% (44,123 in 2000) |
| Pronunciation | /məˈkʌ.lək/, 3 syllables |
| Variant spellings | none recorded |

## Etymology

Anglicized form of Irish Mac Cú Uladh.

## Who carries it

Share of people named McCullough 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) | 73% |
| Black (not Hispanic) | 21% |
| Hispanic or Latino (any race) | 2.6% |
| Asian and Pacific Islander | 0.5% |
| American Indian and Alaska Native | 0.5% |
| Two or more races | 2.0% |

## Where

Wikidata records people named McCullough in the United States and Australia.

## People named McCullough

- Colleen McCullough, Australian author (1937-2015)
- Chris McCullough, American basketball player (born 1995)
- Wayne McCullough, American boxer
- Philo McCullough, American film actor (1893-1981)
- Julie McCullough, American actress and comedian
- Shanna McCullough, American pornographic actress
- Bernie Mac, American actor (1957–2008)

## Similar surnames

McCall, McCulley, McCollough, McCully, McCloy, McCaulley, McColl, McCulloch, McLaughlin, McAllister, Michaels, McAlister.

## 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.