Llewellyn
Llywelyn is a Welsh personal name, which has also become a family name most commonly spelt Llewellyn. The name has many variations and derivations, mainly as a result of the difficulty for non-Welsh speakers of representing the sound of the initial double ll.
Meaning & Origin of Llewellyn
What this name means, where it came from, and how it has traveled across cultures.
Llywelyn is a Welsh personal name, which has also become a family name most commonly spelt Llewellyn. The name has many variations and derivations, mainly as a result of the difficulty for non-Welsh speakers of representing the sound of the initial double ll.
Source: Wikipedia (CC BY-SA 3.0). Read more →
Etymology
Origin & history
The Story of Llewellyn
As a girl name
Llewellyn first appeared in U.S. Social Security Administration records as a girl name in 1906, with 7 babies given the name that year. Its peak popularity came in 1924, when 17 Llewellyns were born — ranking #2,212 that year. As of 2026, Llewellyn ranks #13,427 for girls with 6 births, rising sharply (+17% over the past five years). In total, more than 330 Llewellyns have been born in the U.S. since records began in 1880, spanning the 1900s through the 2020s.
As a boy name
Llewellyn first appeared in U.S. Social Security Administration records as a boy name in 1880, with 9 babies given the name that year. Its peak popularity came in 1916, when 69 Llewellyns were born — ranking #724 that year. As of 2026, Llewellyn ranks #6,902 for boys with 11 births, holding steady (+2%). In total, more than 3K Llewellyns have been born in the U.S. since records began in 1880, spanning the 1880s through the 2020s.
Popularity Over Time
Popularity by State
Names that sound like Llewellyn
Phonetically similar names — useful when Llewellyn is the vibe but a different syllable count or letter feel might suit better. Linked entries have a profile on Peek a Name.
Source: Datamuse . Phonetic similarity ranking, not curated.
Frequently Asked Questions about Llewellyn
What does the name Llewellyn mean?
How popular is Llewellyn in 2026?
When was Llewellyn most popular?
In which U.S. states is Llewellyn most popular?
Is Llewellyn a unisex name?
What names go well with Llewellyn?
About the name Llewellyn
Llewellyn is a unisex baby name tracked by the U.S. Social Security Administration. It first appeared in SSA records in 1880 and has accumulated 3K births in the dataset. Llewellyn's peak popularity came in 1916 when it ranked #576. Use the chart and map above to compare Llewellyn's trajectory across years and U.S. states, or browse the related names section to discover similar choices.
Continue exploring
- Top names of 1916 →
- Names of the 1910s →
- Names starting with "L" →
- Browse all boy names →
- Top names of 2026 →
- Browse unisex names →
Data sources
- Birth statistics (counts, ranks, years 1880–2026) — U.S. Social Security Administration . Predictions for years not yet released by SSA are computed by Peek a Name from historical trends; we update with official data as soon as it ships.
- Etymology, cultural origins, and related forms — Behind the Name (used under their public API terms).
- Meaning prose and editorial summary — Wikipedia article extracts, licensed under CC BY-SA 3.0 .
- Predicted nationality distribution — Nationalize.io .
- Phonetically similar names — Datamuse .
Peek a Name aggregates and presents the above data for informational purposes. Statistical predictions and external attributions are clearly labelled where shown; we make no guarantee of accuracy beyond what each source provides.