Feminine dossier · first seen 1991
Hennessy
Stable
Cross-generational persistence
Peak era
2019
Peak births
82
Current vitality
Rare
Peak generation
Gen Alpha
Quick answers about Hennessy
How many people are named Hennessy?
An estimated 1,549 living Americans are named Hennessy.
How rare is Hennessy?
Hennessy is very rare among babies today, with 37 girls receiving the name in 2025, down 54.9% from its 2019 peak.
How old is the typical Hennessy?
The median age of a living American named Hennessy is approximately 15 years, with most bearers falling between 8 and 21 years old.
Is Hennessy still popular?
Yes. Hennessy is holding steady, with 37 births in 2025 and a consistent recent baseline.
Where is Hennessy most common?
Hennessy has its strongest geographic signal in California, where it appears 3.0× more often than the national baseline.
1991Peak 20192025
Peak year
2019
Decline from peak
54.9%
2025
37
All-time
1,568
Where it lives now
Hennessy is most concentrated in California — about 2.3× the national rate in the 2020s.
States where Hennessy is given more often than the national average — its present-day heartland.