Llewellyn
A male given name from Welsh.
Every Llewellyn since 1880 — 3,755 of them. Popularity, births, and rankings for each year, from official Social Security records.
The story of Llewellyn
Llewellyn is rare for boys in the United States, ranked #5,749 in 2025 with 16 babies given the name. It is currently rising compared with a decade ago.
Since 1880, 3,755 American babies have been named Llewellyn — about 91% boys and 9% girls, making it a genuinely unisex name. Its peak came in 1918, when 79 newborns received the name — the signature sound of the 1910s.
The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Llewellyn stood among all boys' names in any year, or use the compare tool to plot it against other names.
Llewellyn year by year
Every year since 2001, and five-year steps back to 1880. Rank is within each sex.
| Year | Girls | Girls rank | Boys | Boys rank |
|---|---|---|---|---|
| 2025 | 11 | #9,223 | 16 | #5,749 |
| 2024 | 6 | #14,533 | 13 | #6,682 |
| 2023 | 7 | #12,909 | 10 | #8,041 |
| 2022 | 8 | #11,817 | 7 | #10,433 |
| 2021 | 7 | #12,960 | 13 | #6,541 |
| 2020 | 6 | #14,423 | 13 | #6,497 |
| 2019 | 5 | #17,020 | 8 | #9,407 |
| 2018 | — | — | 7 | #10,322 |
| 2017 | — | — | 10 | #7,919 |
| 2016 | — | — | 7 | #10,316 |
| 2015 | 8 | #12,506 | 8 | #9,240 |
| 2014 | — | — | 7 | #10,308 |
| 2013 | — | — | 5 | #13,291 |
| 2012 | — | — | 10 | #7,907 |
| 2011 | — | — | 8 | #9,281 |
| 2010 | — | — | 11 | #7,389 |
| 2009 | — | — | — | — |
| 2008 | 6 | #16,654 | 5 | #13,788 |
| 2007 | — | — | — | — |
| 2006 | — | — | 5 | #13,231 |
| 2005 | — | — | 5 | #12,589 |
| 2004 | — | — | 5 | #12,473 |
| 2003 | — | — | 6 | #10,359 |
| 2002 | — | — | — | — |
| 2001 | — | — | — | — |
| 2000 | — | — | 10 | #6,639 |
| 1995 | — | — | 11 | #5,370 |
| 1990 | — | — | 13 | #4,311 |
| 1985 | — | — | 16 | #3,031 |
| 1980 | — | — | 19 | #2,584 |
| 1975 | — | — | 15 | #2,713 |
| 1970 | — | — | 28 | #1,643 |
| 1965 | — | — | 26 | #1,544 |
| 1960 | — | — | 48 | #1,137 |
| 1955 | — | — | 44 | #1,128 |
| 1950 | — | — | 38 | #1,173 |
| 1945 | — | — | 25 | #1,338 |
| 1940 | 5 | #4,743 | 43 | #989 |
| 1935 | 9 | #3,059 | 35 | #1,115 |
| 1930 | 6 | #4,322 | 49 | #969 |
| 1925 | 6 | #4,722 | 50 | #966 |
| 1920 | — | — | 53 | #957 |
| 1915 | 5 | #4,660 | 55 | #828 |
| 1910 | — | — | 18 | #722 |
| 1905 | — | — | 5 | #1,344 |
| 1900 | — | — | — | — |
| 1895 | — | — | 10 | #727 |
| 1890 | — | — | 7 | #851 |
| 1885 | — | — | 8 | #739 |
| 1880 | — | — | 9 | #665 |
Frequently asked questions
What does the name Llewellyn mean?
A male given name from Welsh.
How popular is the name Llewellyn in 2025?
Llewellyn ranked #5,749 among boys' names in the United States in 2025, with 16 babies given the name, according to Social Security Administration data.
How many people are named Llewellyn?
3,755 babies have been named Llewellyn in the United States since 1880, based on Social Security card applications.
When was the name Llewellyn most popular?
Llewellyn peaked in 1918, when 79 newborns received the name.
Is Llewellyn a boy or girl name?
Llewellyn is used for both: about 9% of babies named Llewellyn have been girls and 91% boys.
Is the name Llewellyn rising or falling?
Llewellyn is on the rise — noticeably more popular now than a decade ago.