Llewellyn
- Meaning
- Meaning uncertain; related to Welsh Llywelyn
- Origin
- Welsh
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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.
Nicknames & variations
Explore short forms, spellings, and related names.
Variations & related forms
Related forms and spellings recorded for this name.
How popular is Llewellyn?
United States · 2025Explore 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
Recorded births
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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.
| Year | Usage | US rank | Births |
|---|---|---|---|
| 2025 | Boys | #5,749 | 16 |
| 2025 | Girls | #9,223 | 11 |
| 2024 | Boys | #6,682 | 13 |
| 2024 | Girls | #14,533 | 6 |
| 2023 | Boys | #8,041 | 10 |
| 2023 | Girls | #12,909 | 7 |
| 2022 | Boys | #10,433 | 7 |
| 2022 | Girls | #11,817 | 8 |
| 2021 | Boys | #6,541 | 13 |
| 2021 | Girls | #12,960 | 7 |
| 2020 | Boys | #6,497 | 13 |
| 2020 | Girls | #14,423 | 6 |
| 2019 | Boys | #9,407 | 8 |
| 2019 | Girls | #17,020 | 5 |
| 2018 | Boys | #10,322 | 7 |
| 2017 | Boys | #7,919 | 10 |
| 2016 | Boys | #10,316 | 7 |
| 2015 | Boys | #9,240 | 8 |
| 2015 | Girls | #12,506 | 8 |
| 2014 | Boys | #10,308 | 7 |
Years reflect available birth records. Missing records do not mean zero births.
Names like Llewellyn
Explore the connection, then save your favorites to compare.
Reese
Unisex- Meaning
- Ardor; enthusiasm
Shares an origin with Llewellyn.
Ellis
Unisex- Meaning
- My God is Yahweh; benevolent
Shares an origin with Llewellyn.
Morgan
Unisex- Meaning
- Welsh name traditionally linked with the sea
Shares an origin with Llewellyn.
Reece
Unisex- Meaning
- Ardor or enthusiasm
Shares an origin with Llewellyn.
Vaughn
Unisex- Meaning
- Small or younger
Shares an origin with Llewellyn.
Emrys
Unisex- Meaning
- Immortal
Shares an origin with Llewellyn.
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