# Lock (surname)

Source: https://namelineage.com/surname/lock/  
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 | not recorded |
| People in the US (2010 Census) | 6,936 |
| US rank (2010) | 5,058 of 162,253 |
| How often | about 1 in every 44,513 people |
| Change since 2000 | +6.0% (6,543 in 2000) |
| Pronunciation | not recorded |
| Variant spellings | none recorded |

## Etymology

* As an English, German and Dutch surname, from the noun lock. * Also as an English surname, from Middle English loke, itself from Old English loca (“enclosure”) or *Loca (“Loki”) (theonym of the latter). * Also as an English surname, from Middle English locke, from Old English locc (“lock of hair”). * Also as a German surname, Americanized from Loch. * As a Chinese surname, variant of Lok, itself from: ** a Cantonese form of 樂 /乐, see Le. ** a Cantonese form of 陸 /陆, 鹿 (lù), 逯 (lù), and 禄 (lù), see Lu. ** a Cantonese form of 駱 /骆 (luò), see Luo.

## Who carries it

Share of people named Lock 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) | 76% |
| Black (not Hispanic) | 11% |
| Hispanic or Latino (any race) | 3.0% |
| Asian and Pacific Islander | 6.9% |
| American Indian and Alaska Native | 0.9% |
| Two or more races | 2.0% |

## Where

Wikidata records people named Lock in the United Kingdom and Australia.

## People named Lock

- Sean Lock, British comedian (1963–2021)
- Andrew Lock, Australian Himalayan mountaineer
- Georgia Lock, British actress, singer, presenter

## Similar surnames

Locke, Luck, Look, Lack, Lokey, Lok, Louk, Lick, Loucks, Loch, Lewis, Leach.

## 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.