Baby Names US
boys' name ★ peaked 1916

Lennart

Gender Boy Rank 2025 Below top lists
Rank 2025
–
among boys
Babies in 2025
<5
named Lennart
How common
–
boys born in 2025
Peak year
1916
18 babies
All-time total
426
#8,690 all-time among boys
First recorded
1911
in Social Security records

Lennart popularity over time

426 babies have been named Lennart since 1911, 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
0.010.010.020.0318801900192019401960198020002020Peak 1911Boys

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 Boys Per year Change Best rank
1880s – – – –
1890s – – – –
1900s – – – –
1910s 72 7 – #1,734
1920s 101 10 +40% #1,975
1930s 102 10 +1% #1,883
1940s 58 6 -43% #2,127
1950s 46 5 -21% #3,164
1960s 19 2 -59% #3,212
1970s 5 1 -74% #6,431
1980s – – – –
1990s – – – –
2000s 5 1 – #13,218
2010s 13 1 +160% #9,373
2020s (to 2025) 5 1 -36% #13,295

The story of Lennart

Lennart 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 1911, 426 American babies have been named Lennart. Its peak came in 1916, when 18 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 Lennart stood among all boys' names in any year, or use the compare tool to plot it against other names.

How old are people named Lennart?

The median living Lennart is about 69 years old; half are between 61 and 81. An estimated 100 people named Lennart are alive in the United States today.

median 69 020406080100

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

Lennart year by year

Every year since 2001, and five-year steps back to 1880. Rank is within each sex.

Year Boys Boys rank
2025 – –
2024 – –
2023 – –
2022 – –
2021 5 #13,295
2020 – –
2019 – –
2018 – –
2017 – –
2016 – –
2015 – –
2014 – –
2013 – –
2012 8 #9,373
2011 – –
2010 5 #13,480
2009 – –
2008 – –
2007 – –
2006 5 #13,218
2005 – –
2004 – –
2003 – –
2002 – –
2001 – –
2000 – –
1995 – –
1990 – –
1985 – –
1980 – –
1975 – –
1970 – –
1965 – –
1960 – –
1955 – –
1950 5 #3,978
1945 – –
1940 7 #3,018
1935 15 #1,883
1930 16 #1,933
1925 17 #1,975
1920 7 #3,675
1915 12 #2,249
1910 – –
1905 – –
1900 – –
1895 – –
1890 – –
1885 – –
1880 – –

Famous people named Lennart

The most globally famous bearers of the name, ranked by fame across Wikipedia editions (Pantheon project, MIT).

  1. 1 Lennart Bernadotte Lennart Bernadotte Prince Bernadotte 1909–2004 · Contemporary
  2. 2 Lennart Johansson Lennart Johansson Swedish football administrator (1929–2019) Contemporary
  3. 3 Lennart Meri Lennart Meri President of Estonia from 1992 to 2001 1929–2006 · Contemporary
  4. 4 Lennart Thy Lennart Thy German footballer (born 1992) Contemporary
  5. 5 Lennart Torstensson Lennart Torstensson Swedish Field Marshal, Privy Councillor and Governor-General (1603–1651) 17th century
  6. 6 Lennart Skoglund Lennart Skoglund Swedish footballer (1929–1975) Contemporary
  7. 7 Lennart Carleson Lennart Carleson Swedish mathematician (born 1928) Contemporary
  8. 8 Lennart Nilsson Lennart Nilsson Swedish photographer (1922–2017) Contemporary
  9. 9 Lennart Samuelsson Lennart Samuelsson Swedish footballer and manager 1924–2012 · Contemporary

Portraits from Wikipedia (Wikimedia Commons).

Frequently asked questions

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

How old is the average Lennart?

The median living Lennart is about 69 years old. Half of all living Lennarts are between 61 and 81 years old.

How many people named Lennart are alive today?

An estimated 100 people named Lennart are alive in the United States, based on 426 recorded births and Social Security life tables.

How popular is the name Lennart in 2025?

Lennart 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 Lennart?

426 babies have been named Lennart in the United States since 1911, based on Social Security card applications.

When was the name Lennart most popular?

Lennart peaked in 1916, when 18 newborns received the name.

Is Lennart a boy or girl name?

Lennart is overwhelmingly a boy's name: 100% of babies with the name.

Is the name Lennart rising or falling?

Lennart has been roughly stable over the past decade.

Who are famous people named Lennart?

Well-known people named Lennart include Lennart Bernadotte (politician), Lennart Johansson (politician), Lennart Meri (politician).

Names like Lennart

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

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