Origin of the Yamaguchi Surname
The Yamaguchi surname is of Japanese origin (Japanese). In the 2010 U.S. Census it ranked #10,931 with 2,912 Americans (0.99 per 100K people).
What the name meant to the first families who bore it — and how Yamaguchi traveled across regions and centuries — is written out in the full Heritage Report.
Quick Facts
| Surname | Yamaguchi |
|---|---|
| Meaning | Full etymology in the Heritage Report |
| Origin | Japanese |
| Language | Japanese |
| US Rank (2010) | #10,931 |
| US Count (2010) | 2,912 |
| Per 100K People | 0.99 |
| First Letter | Y |
Ethnic Distribution of Yamaguchi
Among 2,912 Americans named Yamaguchi, the largest self-reported group is Asian/Pacific Islander (78.98%).
The full multi-group chart (every percentage, print-ready) is inside the Heritage Report — not repeated here.
Popularity of Yamaguchi Over Time
Between the 2000 and 2010 U.S. Census, the national rank of Yamaguchi moved down. Exact counts for both years — print-ready — are in the Heritage Report.
Where did the Yamaguchi family really come from?
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The Complete Story of the Yamaguchi Family
What you’ve read above is just the overview. Your full Yamaguchi Heritage Report goes far deeper — and it’s yours to keep, print & share with your family.
- ✓ The true origin & meaning of Yamaguchi
- ✓ The Yamaguchi coat of arms & heraldry
- ✓ Migration journey across the world
- ✓ Where Yamaguchi families live today
- ✓ Notable Yamaguchi bearers in history
- ✓ Name variations & spellings worldwide
- ✓ A step-by-step guide to start tracing your own family tree
🎁 A heritage keepsake to pass down — perfect as a gift.
Get one Yamaguchi fact most families never hear by email — a teaser, not the full etymology (that’s in the report).
Similar Surnames to Yamaguchi
These surnames share similar popularity, spelling, or cultural background with Yamaguchi.
Other Japanese Surnames
Explore more surnames with Japanese roots. There are 162,254 surnames in our database — here are some that share the same Japanese origin as Yamaguchi.
Frequently Asked Questions About Yamaguchi
Top Surnames Starting with Y
The most common American surnames that begin with the letter Y, ranked by population.
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