# McCloy (surname)

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

A surname.

| Field | Value |
|---|---|
| Origin | not recorded |
| Type | patronymic, formed from a father’s (or ancestor’s) given name |
| People in the US (2010 Census) | 1,648 |
| US rank (2010) | 17,182 of 162,253 |
| How often | about 1 in every 187,346 people |
| Change since 2000 | +2.2% (1,612 in 2000) |
| Pronunciation | not recorded |
| Variant spellings | none recorded |

## Etymology

Anglicized form of Northern Irish and Scottish Gaelic Mac Lugaidh (“son of Lugaid”), a personal name related to Old Irish Lug.

## Who carries it

Share of people named McCloy 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) | 1.1% |
| Hispanic or Latino (any race) | 2.3% |
| Two or more races | 1.5% |

## Where

Wikidata records people named McCloy in the United States.

## People named McCloy

- John J. McCloy, American lawyer and banker (1895-1989)
- Helen McCloy, American writer (1904–1994)

## Similar surnames

McCullough, McCall, McCauley, McCool, McCulley, McCalla, McCully, McClay, McCaulley, McColl, McCawley, McColley.

## 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.