Masculine dossier · first seen 1916

Llewelyn

Rising Gaining cultural share

Peak era

2024

Peak births

Current vitality

Rare

Peak generation

Gen Alpha

Quick answers about Llewelyn

An estimated 134 living Americans are named Llewelyn.

Llewelyn is very rare among babies today, with 17 boys receiving the name in 2025, down 29.2% from its 2024 peak.

The median age of a living American named Llewelyn is approximately 5 years, with most bearers falling between 2 and 48 years old.

Yes — Llewelyn is currently rising in popularity, with 17 births in 2025. Births this decade are running about 19.2× higher than the previous decade.

1916Peak 20242025

Peak year

2024

Decline from peak

29.2%

2025

All-time

178

Llewelyn is at an all-time high in the latest SSA data. With 24 boys in 2024, it has never been more common.

Llewelyn peaked in 2024, when 24 boys were given the name.

In 2025, only 17 boys were given the name.

In all, the Social Security Administration has recorded about 178 Americans named Llewelyn since 1916.

Rarity score99th percentile rare

Peak generationGen Alpha

StabilityHigh cross-era durability

TrajectoryGaining cultural share

Living profile

137

Estimated living Americans with this name.

Median age5

Core range2–48

Playground Density Index 0.0%

Wave type

Glacier

A long-duration classic distributed across many generations.