# McArthur (surname)

Source: https://namelineage.com/surname/mcarthur/  
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 Scottish Gaelic.

| Field | Value |
|---|---|
| Origin | Scottish Gaelic |
| Type | patronymic, formed from a father’s (or ancestor’s) given name |
| People in the US (2010 Census) | 12,683 |
| US rank (2010) | 2,844 of 162,253 |
| How often | about 1 in every 24,343 people |
| Change since 2000 | +4.4% (12,152 in 2000) |
| Pronunciation | not recorded |
| Variant spellings | none recorded |

## Etymology

Partial translation of Scottish Gaelic Mac Artair and Irish Mac Artúir (literally “son of Arthur”).

## Who carries it

Share of people named McArthur 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) | 75% |
| Black (not Hispanic) | 18% |
| Hispanic or Latino (any race) | 3.0% |
| Asian and Pacific Islander | 0.5% |
| American Indian and Alaska Native | 1.0% |
| Two or more races | 2.5% |

## Where

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

## People named McArthur

- Duncan McArthur, American politician (1772-1839)
- Malcolm McArthur, Australian rugby union player (1882–1961)
- Adam McArthur, American actor
- Alex McArthur, American actor

## Similar surnames

MacArthur, McCarthy, McCarty, McGrath, McCarter, McCart, McCord, McCartney, McCurdy, McWhorter, Maggard, McArdle.

## 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.