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Unisex9 letters

Llewellyn

Meaning
Meaning uncertain; related to Welsh Llywelyn
Origin
Welsh
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Meaning & origin

What does Llewellyn mean?

Llewellyn means “Meaning uncertain; related to Welsh Llywelyn”.

Llewellyn is a familiar spelling of the Welsh name Llywelyn. Its deeper origin is uncertain, with explanations involving older Celtic names and Welsh language elements. Although it is sometimes associated with the Welsh word for lion, lion-like is not a secure literal translation. The name’s strongest foundation is its long record in Welsh history.

Llywelyn the Great and Llywelyn ap Gruffudd, often called Llywelyn the Last, give the name important medieval connections. The Welsh ll also represents a sound that is not identical to an ordinary English l, making pronunciation an important part of its cultural identity. Llewellyn preserves the recognizability of those historical forms while using a spelling frequently encountered in English-language records. It can carry a substantial Welsh family connection even when its ancient meaning remains unresolved.

Short forms & related names

Nicknames & variations

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Variations & related forms

Related forms and spellings recorded for this name.

  • Llywelyn
  • Llewelyn
Popularity & trends

How popular is Llewellyn?

United States · 2025

Explore how often Llewellyn is used and how its ranking has changed.

US boys rank
#5,749
2025 · #1 is most popular
Boys named Llewellyn
16
Recorded births in 2025
Change in births
23.1%
More than 2024

Llewellyn over time

United States · Boys

Yearly data & usage

Rankings are calculated separately for girls and boys. The summary highlights boys, the most common recorded usage in 2025. Use the chart’s usage selector to explore both categories.

Llewellyn: United States birth counts and ranks
YearUsageUS rankBirths
2025Boys#5,74916
2025Girls#9,22311
2024Boys#6,68213
2024Girls#14,5336
2023Boys#8,04110
2023Girls#12,9097
2022Boys#10,4337
2022Girls#11,8178
2021Boys#6,54113
2021Girls#12,9607
2020Boys#6,49713
2020Girls#14,4236
2019Boys#9,4078
2019Girls#17,0205
2018Boys#10,3227
2017Boys#7,91910
2016Boys#10,3167
2015Boys#9,2408
2015Girls#12,5068
2014Boys#10,3087

Years reflect available birth records. Missing records do not mean zero births.

Keep discovering

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Shared origin

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Shared origin

Ellis

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My God is Yahweh; benevolent

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Shared origin

Morgan

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Meaning
Welsh name traditionally linked with the sea

Shares an origin with Llewellyn.

Shared origin

Reece

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Meaning
Ardor or enthusiasm

Shares an origin with Llewellyn.

Shared origin

Vaughn

Unisex
Meaning
Small or younger

Shares an origin with Llewellyn.

Shared origin

Emrys

Unisex
Meaning
Immortal

Shares an origin with Llewellyn.

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