Origin of the Kos Surname
The Kos surname is of Greek/Portuguese origin (Greek). In the 2010 U.S. Census it ranked #17,026 with 1,669 Americans (0.57 per 100K people).
What the name meant to the first families who bore it — and how Kos traveled across regions and centuries — is written out in the full Heritage Report.
Quick Facts
| Surname | Kos |
|---|---|
| Meaning | Full etymology in the Heritage Report |
| Origin | Greek/Portuguese |
| Language | Greek |
| US Rank (2010) | #17,026 |
| US Count (2010) | 1,669 |
| Per 100K People | 0.57 |
| First Letter | K |
Ethnic Distribution of Kos
Among 1,669 Americans named Kos, the largest self-reported group is White (94.61%).
The full multi-group chart (every percentage, print-ready) is inside the Heritage Report — not repeated here.
Popularity of Kos Over Time
Between the 2000 and 2010 U.S. Census, the national rank of Kos moved down. Exact counts for both years — print-ready — are in the Heritage Report.
Where did the Kos family really come from?
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The Complete Story of the Kos Family
What you’ve read above is just the overview. Your full Kos Heritage Report goes far deeper — and it’s yours to keep, print & share with your family.
- ✓ The true origin & meaning of Kos
- ✓ The Kos coat of arms & heraldry
- ✓ Migration journey across the world
- ✓ Where Kos families live today
- ✓ Notable Kos 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 Kos fact most families never hear by email — a teaser, not the full etymology (that’s in the report).
Similar Surnames to Kos
These surnames share similar popularity, spelling, or cultural background with Kos.
Other Greek/Portuguese Surnames
Explore more surnames with Greek/Portuguese roots. There are 162,254 surnames in our database — here are some that share the same Greek/Portuguese origin as Kos.
Frequently Asked Questions About Kos
Top Surnames Starting with K
The most common American surnames that begin with the letter K, ranked by population.
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