# Yamaguchi (surname)

Source: https://namelineage.com/surname/yamaguchi/  
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 Japanese.

| Field | Value |
|---|---|
| Origin | Japanese |
| Type | not recorded |
| People in the US (2010 Census) | 2,912 |
| US rank (2010) | 10,931 of 162,253 |
| How often | about 1 in every 106,025 people |
| Change since 2000 | +1.3% (2,875 in 2000) |
| Pronunciation | /jɑməˈɡut͡ʃi/, 4 syllables |
| Variant spellings | none recorded |

## Etymology

Borrowed from Japanese 山口(やまぐち) (Yamaguchi).

## Who carries it

Share of people named Yamaguchi 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) | 5.9% |
| Hispanic or Latino (any race) | 5.3% |
| Asian and Pacific Islander | 79% |
| Two or more races | 9.8% |

## Where

Wikidata records people named Yamaguchi in the United States and the Empire of Japan.

## People named Yamaguchi

- Kristi Yamaguchi, American figure skater
- Seigo Yamaguchi, Aikidoka (1924-1996)

## Similar surnames

Yamasaki, Youngquist, Yniguez.

## 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.