# Bay (surname)

Source: https://namelineage.com/surname/bay/  
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) | 6,350 |
| US rank (2010) | 5,477 of 162,253 |
| How often | about 1 in every 48,621 people |
| Change since 2000 | +0.1% (6,346 in 2000) |
| Pronunciation | not recorded |
| Variant spellings | none recorded |

## Etymology

From bay.

## Who carries it

Share of people named Bay 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) | 83% |
| Black (not Hispanic) | 5.2% |
| Hispanic or Latino (any race) | 4.2% |
| Asian and Pacific Islander | 5.3% |
| American Indian and Alaska Native | 0.6% |
| Two or more races | 1.7% |

## Where

Wikidata records people named Bay in the United States.

## People named Bay

- Michael Bay, American film director and producer (born 1965)
- Susan Bay, American actress

## Similar surnames

Bae, Bah, Bai, Bao, Ba, Bau, Bui, Bowie, Bowe, Buie, Bey, Bee.

## 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.