Masculine dossier · first seen 1880
Leo
Rising
Gaining cultural share
Peak era
2022
Peak births
8,293
Current vitality
Strong
Peak generation
Gen Alpha
Quick answers about Leo
How many people are named Leo?
An estimated 141,557 living Americans are named Leo.
How rare is Leo?
Leo is still widely used among babies today, with 8,173 boys receiving the name in 2025.
How old is the typical Leo?
The median age of a living American named Leo is approximately 10 years, with most bearers falling between 5 and 32 years old.
Is Leo still popular?
Yes — Leo is currently rising in popularity, with 8,173 births in 2025. Births this decade are running about 2.8× higher than the previous decade.
Where is Leo most common?
Leo has its strongest geographic signal in New Hampshire, where it appears 4.4× more often than the national baseline.
1880Peak 20222025
Peak year
2022
Decline from peak
1.4%
2025
8,173
All-time
259,988
Where it lives now
Leo is most concentrated in New Hampshire — about 4.2× the national rate in the 1950s.
States where Leo is given more often than the national average — its present-day heartland.