Baby Names US
Unisex name ★ peaked 1929

Lewellyn

Meaning Spelling variant of Llewellyn Gender Unisex · 10% girls Rank 2025 Below top lists

Spelling variant of Llewellyn.

Rank 2025
–
among boys
Babies in 2025
<5
named Lewellyn
How common
–
boys born in 2025
Peak year
1929
22 babies
All-time total
339
#10,457 all-time among boys
First recorded
1912
in Social Security records

Lewellyn popularity over time

339 babies have been named Lewellyn since 1912, according to official Social Security records. Switch measure to see births per year or the yearly rank.

Measure
Births per 1,000 babies of that sex, comparable across eras
0.010.010.020.0218801900192019401960198020002020BoysGirls
BoysGirls

By decade. Change compares yearly averages, so the current partial decade is on equal footing. Best rank is the name's best yearly rank within the decade.

Decade Girls Boys Total Per year Change Best rank
1880s – – – – – –
1890s – – – – – –
1900s – – – – – –
1910s 5 58 63 6 – #2,184
1920s 5 97 102 10 +62% #1,899
1930s 16 66 82 8 -20% #2,013
1940s 7 42 49 5 -40% #1,935
1950s – 33 33 3 -33% #2,894
1960s – 10 10 1 -70% #4,396
1970s – – – – – –
1980s – – – – – –
1990s – – – – – –
2000s – – – – – –
2010s – – – – – –
2020s (to 2025) – – – – – –

The story of Lewellyn

Lewellyn is not currently in use for newborns in the United States: fewer than five babies received the name in 2025. Its story lives in the historical record below.

Since 1912, 339 American babies have been named Lewellyn, about 90% boys and 10% girls, making it a genuinely unisex name. Its peak came in 1929, when 22 newborns received the name, the signature sound of the 1920s.

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 Lewellyn stood among all boys' names in any year, or use the compare tool to plot it against other names.

Lewellyn 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 – – – –
2024 – – – –
2023 – – – –
2022 – – – –
2021 – – – –
2020 – – – –
2019 – – – –
2018 – – – –
2017 – – – –
2016 – – – –
2015 – – – –
2014 – – – –
2013 – – – –
2012 – – – –
2011 – – – –
2010 – – – –
2009 – – – –
2008 – – – –
2007 – – – –
2006 – – – –
2005 – – – –
2004 – – – –
2003 – – – –
2002 – – – –
2001 – – – –
2000 – – – –
1995 – – – –
1990 – – – –
1985 – – – –
1980 – – – –
1975 – – – –
1970 – – – –
1965 – – – –
1960 – – – –
1955 – – – –
1950 – – – –
1945 – – 6 #3,191
1940 7 #3,700 5 #3,736
1935 – – 8 #2,844
1930 – – 12 #2,385
1925 – – 10 #2,858
1920 – – 9 #3,096
1915 – – 5 #4,148
1910 – – – –
1905 – – – –
1900 – – – –
1895 – – – –
1890 – – – –
1885 – – – –
1880 – – – –

Frequently asked questions

Quick answers about Lewellyn, drawn from the same Social Security data as the charts above.

What does the name Lewellyn mean?

Spelling variant of Llewellyn.

How popular is the name Lewellyn in 2025?

Lewellyn did not appear in the 2025 Social Security data, which means fewer than five babies received the name that year.

How many people are named Lewellyn?

339 babies have been named Lewellyn in the United States since 1912, based on Social Security card applications.

When was the name Lewellyn most popular?

Lewellyn peaked in 1929, when 22 newborns received the name.

Is Lewellyn a boy or girl name?

Lewellyn is used for both: about 10% of babies named Lewellyn have been girls and 90% boys.

Is the name Lewellyn rising or falling?

Lewellyn has been roughly stable over the past decade.

Names like Lewellyn

Names that sound and feel close to Lewellyn: shared sounds, similar era, similar popularity. Each links to its full history.

Compare Lewellyn with similar names → More names starting with L →