Origin of the Leahy Surname
The Leahy surname is of French origin (French). In the 2010 U.S. Census it ranked #3,280 with 11,014 Americans (3.73 per 100K people).
What the name meant to the first families who bore it — and how Leahy traveled across regions and centuries — is written out in the full Heritage Report.
Quick Facts
| Surname | Leahy |
|---|---|
| Meaning | Full etymology in the Heritage Report |
| Origin | French |
| Language | French |
| US Rank (2010) | #3,280 |
| US Count (2010) | 11,014 |
| Per 100K People | 3.73 |
| First Letter | L |
Ethnic Distribution of Leahy
Among 11,014 Americans named Leahy, the largest self-reported group is White (95.41%).
The full multi-group chart (every percentage, print-ready) is inside the Heritage Report — not repeated here.
Popularity of Leahy Over Time
Between the 2000 and 2010 U.S. Census, the national rank of Leahy moved down. Exact counts for both years — print-ready — are in the Heritage Report.
Where did the Leahy family really come from?
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The Complete Story of the Leahy Family
What you’ve read above is just the overview. Your full Leahy Heritage Report goes far deeper — and it’s yours to keep, print & share with your family.
- ✓ The true origin & meaning of Leahy
- ✓ The Leahy coat of arms & heraldry
- ✓ Migration journey across the world
- ✓ Where Leahy families live today
- ✓ Notable Leahy 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 Leahy fact most families never hear by email — a teaser, not the full etymology (that’s in the report).
Similar Surnames to Leahy
These surnames share similar popularity, spelling, or cultural background with Leahy.
Other French Surnames
Explore more surnames with French roots. There are 162,254 surnames in our database — here are some that share the same French origin as Leahy.
Frequently Asked Questions About Leahy
Top Surnames Starting with L
The most common American surnames that begin with the letter L, ranked by population.
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