Masculine dossier · first seen 1920
Kei
Stable Decline
Gradual decline from 2015
Peak era
2015
Peak births
33
Current vitality
Rare
Peak generation
Gen Alpha
Quick answers about Kei
How many people are named Kei?
An estimated 627 living Americans are named Kei.
How rare is Kei?
Kei is very rare among babies today, with 14 boys receiving the name in 2025, down 57.6% from its 2015 peak.
How old is the typical Kei?
The median age of a living American named Kei is approximately 15 years, with most bearers falling between 8 and 28 years old.
Is Kei still popular?
Not especially. Kei has been declining since its 2015 peak and registered 14 births in 2025.
Where is Kei most common?
Kei has its strongest geographic signal in California, where it appears 2.1× more often than the national baseline.
1920Peak 20152025
Peak year
2015
Decline from peak
57.6%
2025
14
All-time
651