Masculine dossier · first seen 1993
Kj
Rising
Gaining cultural share
Peak era
2021
Peak births
21
Current vitality
Rare
Peak generation
Gen Alpha
Quick answers about Kj
How many people are named Kj?
An estimated 227 living Americans are named Kj.
How rare is Kj?
Kj is very rare among babies today, with 12 boys receiving the name in 2025, down 42.9% from its 2021 peak.
How old is the typical Kj?
The median age of a living American named Kj is approximately 8 years, with most bearers falling between 4 and 14 years old.
Is Kj still popular?
Yes — Kj is currently rising in popularity, with 12 births in 2025. Births this decade are running about 2.3× higher than the previous decade.
1993Peak 20212025
Peak year
2021
Decline from peak
42.9%
2025
12
All-time
229