Total births
178
Unisex name · since 1916
Llewelyn
178 babies named Llewelyn in U.S. Social Security records since 1916, with the highest year being 2024. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #4333
- among boys today
- 178
- born since 1916
- 2020s
- peak decade
- 70%
- more common than other boys
Yes -- Llewelyn is the #4333 most popular unisex name in the U.S. today, with 178 recorded since 1916.
According to the U.S. Social Security Administration, Llewelyn has been recorded 178 times among boys since 1916, currently ranked #4333 nationally and more common than 70% of boys, with its heaviest use in the 2020s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1916 to 2025.
- #4333 among boys today
- 178 born since 1916
- 2020s peak decade
- 70% more common than other boys
Data updated Jul 2026
The verdict
Llewelyn is currently the #4333 unisex name in America, more common than 70% of boys - 178 born since 1916, peaking in the 2020s.
- #4333
- among boys today
- 178
- born since 1916
- 2020s
- peak decade
- 70%
- more common than other boys
Llewelyn vs. every other boys name in current SSA rankings
#4333
of 14,294 boys in use
More common than 70% of names given to boys today.
2020s
Peak decade
47% of everyone ever named Llewelyn was born in this single decade.
2024
Single peak year
24 babies were named Llewelyn in 2024 - its busiest year on record.
How Llewelyn compares
178 36th percentile among 14,294 names currently given to boys
Based on all-time total births among currently-ranked boys names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Llewelyn's all-time total is 51% below the median boys name, and Liam still leads by a wide margin.
| Metric | Llewelyn | Median boys name (Elchonon) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 178 | 367 | 358,536 |
| Peak-year births | 24 | 23 | 22,252 |
Llewelyn's usage pattern, beyond the headline number
Llewelyn splits its recorded history at 1976: 62% of all births land in the more recent half, 38% in the earlier half, a lean toward present-day use rather than a passing spike. The single quietest year was 1918 (5 births) -- compare that against the 2024 peak of 24 for a sense of just how much the name's popularity has swung.
Llewelyn at a glance
Outside the top 1,000Peak year
2024
Current rank
#4,333
Active since
1916
Llewelyn popularity over time - boys
Annual U.S. births registered with the Social Security Administration · 1916–2025
- Peak year (2024)
- 24
- Annual births at peak, across 110 years of records
Llewelyn popularity over time - girls
10 total births recorded since 2017 (Llewelyn as girls' name)
Llewelyn by decade
Total births in each ten-year window, peak vs trough at a glance
2020s was Llewelyn's strongest decade.
83 babies received the name during that ten-year window, about 47% of all-time use.
Llewelyn births by decade
Total births in each ten-year window
- 1910s 13
1910s
13 births
- 1920s 20
1920s
20 births
- 1950s 22
1950s
22 births
- 1960s 7
1960s
7 births
- 1970s 15
1970s
15 births
- 2010s 18
2010s
18 births
- 2020s
2020s
83 births
What this shows Peak: 2020s at 83 births (47% of all-time use).
Frequently Asked Questions
How popular is the name Llewelyn? ▼
Llewelyn has been given to 178 babies in the U.S. since 1916, according to SSA data. Among boys, it ranks #4333 as of the latest data. 24 babies were born in 2024, its single highest year.
When was Llewelyn most popular? ▼
Llewelyn was most popular in the 2020s decade with 83 total births. The single peak year was 2024.
Is Llewelyn a unisex name? ▼
Yes, Llewelyn is used for both boys and girls. As a boy's name it has 178 births, and as a girl's name it has 10 births.
How long has the name Llewelyn been used? ▼
The SSA has tracked Llewelyn since 1916 -- 110 years through the most recent 2025 data.
What names are similar to Llewelyn? ▼
Names with a similar sound or spelling include Llewellyn, Lleyton, Llewyn. These share a common prefix and are also used for boys.
Keep exploring Llewelyn
Nearby Names Like Llewelyn
Names with a similar sound, spelling, or feel to Llewelyn
Compare Llewelyn side by side: Llewelyn vs Llewellyn Llewelyn vs Lleyton Llewelyn vs Llewyn
Related Names
Names with a similar popularity rank to Llewelyn
Data Sources
Data as of July 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1916–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Llewelyn: #4333 Unisex Name - 178 Births, Peak 2024." NameAlmanac. Accessed via https://namealmanac.com/name/llewelyn. Licensed CC BY-SA 4.0.
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Llewelyn draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of July 2026.