Baby Names US
Unisex name ★ peaked 1947

Lennis

Gender Unisex · 31% girls Rank 2025 Below top lists
Rank 2025
–
among boys
Babies in 2025
<5
named Lennis
How common
–
boys born in 2025
Peak year
1947
51 babies
All-time total
1,754
#4,533 all-time among boys
First recorded
1898
in Social Security records

Lennis popularity over time

1,754 babies have been named Lennis since 1898, 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
0.010.020.030.0418801900192019401960198020002020BoysGirls
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 17 – 17 2 – –
1900s 11 – 11 1 -35% –
1910s 80 80 160 16 +1355% #1,418
1920s 108 159 267 27 +67% #1,498
1930s 99 177 276 28 +3% #1,346
1940s 113 231 344 34 +25% #1,270
1950s 85 247 332 33 -3% #1,352
1960s 14 164 178 18 -46% #1,647
1970s 5 73 78 8 -56% #2,814
1980s – 58 58 6 -26% #4,024
1990s – 10 10 1 -83% #9,050
2000s 5 8 13 1 +30% #8,016
2010s – 10 10 1 -23% #13,277
2020s (to 2025) – – – – – –

The story of Lennis

Lennis 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 1898, 1,754 American babies have been named Lennis, about 69% boys and 31% girls, making it a genuinely unisex name. Its peak came in 1947, when 51 newborns received the name, the signature sound of the 1940s.

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

How old are people named Lennis?

The median living Lennis is about 70 years old; half are between 59 and 78. An estimated 800 people named Lennis are alive in the United States today.

median 70 020406080100

Estimated from births per year and Social Security period life tables; an approximation of the living age distribution, by age in years.

Lennis 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 – – 5 #13,277
2012 – – 5 #13,425
2011 – – – –
2010 – – – –
2009 – – – –
2008 – – – –
2007 – – – –
2006 – – – –
2005 – – – –
2004 – – – –
2003 – – – –
2002 – – – –
2001 5 #16,831 8 #8,016
2000 – – – –
1995 – – – –
1990 – – – –
1985 – – 9 #4,544
1980 – – 6 #5,953
1975 – – 10 #3,571
1970 – – 12 #2,814
1965 – – 17 #1,965
1960 6 #6,066 25 #1,647
1955 6 #5,543 27 #1,498
1950 8 #4,158 22 #1,595
1945 7 #3,856 18 #1,609
1940 5 #4,727 23 #1,420
1935 8 #3,320 14 #1,994
1930 7 #3,875 20 #1,676
1925 9 #3,529 12 #2,525
1920 7 #4,208 14 #2,291
1915 10 #2,809 11 #2,382
1910 – – – –
1905 – – – –
1900 – – – –
1895 – – – –
1890 – – – –
1885 – – – –
1880 – – – –

Frequently asked questions

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

How old is the average Lennis?

The median living Lennis is about 70 years old. Half of all living Lenniss are between 59 and 78 years old.

How many people named Lennis are alive today?

An estimated 800 people named Lennis are alive in the United States, based on 1,754 recorded births and Social Security life tables.

How popular is the name Lennis in 2025?

Lennis 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 Lennis?

1,754 babies have been named Lennis in the United States since 1898, based on Social Security card applications.

When was the name Lennis most popular?

Lennis peaked in 1947, when 51 newborns received the name.

Is Lennis a boy or girl name?

Lennis is used for both: about 31% of babies named Lennis have been girls and 69% boys.

Is the name Lennis rising or falling?

Lennis is declining, less popular now than a decade ago.

Names like Lennis

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

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