Masculine dossier · first seen 1977

Kayin

Stable Decline Gradual decline from 2001

Peak era

2001

Peak births

Current vitality

Rare

Peak generation

Gen Z

1977Peak 20012025

Quick answers about Kayin

An estimated 541 living Americans are named Kayin.

Kayin is very rare among babies today, with 8 boys receiving the name in 2025, down 74.2% from its 2001 peak.

The median age of a living American named Kayin is approximately 19 years, with most bearers falling between 13 and 25 years old.

Not especially. Kayin has been declining since its 2001 peak and registered 8 births in 2025.

Peak year

2001

Decline from peak

74.2%

2025

All-time

548

Kayin peaked in 2001 with 31 boys. Today it is a faint echo of its former self, with 8 births in 2025.

Kayin peaked in 2001, when 31 boys were given the name.

In 2025, only 8 boys were given the name.

Down 74.2% from its peak.

In all, the Social Security Administration has recorded about 548 Americans named Kayin since 1977.

Rarity score99th percentile rare

Peak generationGen Z

StabilityEra-bound, still legible

TrajectoryGradual decline from 2001

Living profile

541

Estimated living Americans with this name.

Median age19

Core range13–25

Mostly Gen Z: about 67% of living people named Kayin were born 1997–2012.

Playground Density Index 0.0%

Wave type

Steady Decline

A name with a broad middle and a downward recent trajectory.