Lenni
Every Lenni since 1966 — 357 of them. Popularity, births, and rankings for each year, from official Social Security records.
The story of Lenni
Lenni is rare for girls in the United States, ranked #3,366 in 2025 with 46 babies given the name. It is currently rising compared with a decade ago.
Since 1966, 357 American babies have been named Lenni. Its peak came in 2023, when 52 newborns received the name — the signature sound of the 2020s.
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 Lenni stood among all girls' names in any year, or use the compare tool to plot it against other names.
Lenni 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 | 46 | #3,366 | — | — |
| 2024 | 45 | #3,486 | 6 | #11,790 |
| 2023 | 52 | #3,162 | — | — |
| 2022 | 29 | #4,737 | — | — |
| 2021 | 32 | #4,372 | — | — |
| 2020 | 30 | #4,498 | 5 | #13,276 |
| 2019 | 25 | #5,244 | — | — |
| 2018 | 13 | #8,405 | 5 | #13,359 |
| 2017 | 20 | #6,190 | — | — |
| 2016 | 15 | #7,821 | — | — |
| 2015 | 8 | #12,487 | — | — |
| 2014 | 9 | #11,526 | — | — |
| 2013 | 6 | #15,729 | — | — |
| 2012 | — | — | — | — |
| 2011 | — | — | — | — |
| 2010 | — | — | — | — |
| 2009 | — | — | — | — |
| 2008 | — | — | — | — |
| 2007 | — | — | — | — |
| 2006 | — | — | — | — |
| 2005 | — | — | — | — |
| 2004 | — | — | — | — |
| 2003 | — | — | — | — |
| 2002 | — | — | — | — |
| 2001 | — | — | — | — |
| 2000 | — | — | — | — |
| 1995 | — | — | — | — |
| 1990 | — | — | — | — |
| 1985 | — | — | — | — |
| 1980 | — | — | — | — |
| 1975 | — | — | — | — |
| 1970 | — | — | — | — |
| 1965 | — | — | — | — |
| 1960 | — | — | — | — |
| 1955 | — | — | — | — |
| 1950 | — | — | — | — |
| 1945 | — | — | — | — |
| 1940 | — | — | — | — |
| 1935 | — | — | — | — |
| 1930 | — | — | — | — |
| 1925 | — | — | — | — |
| 1920 | — | — | — | — |
| 1915 | — | — | — | — |
| 1910 | — | — | — | — |
| 1905 | — | — | — | — |
| 1900 | — | — | — | — |
| 1895 | — | — | — | — |
| 1890 | — | — | — | — |
| 1885 | — | — | — | — |
| 1880 | — | — | — | — |
Frequently asked questions
How popular is the name Lenni in 2025?
Lenni ranked #3,366 among girls' names in the United States in 2025, with 46 babies given the name, according to Social Security Administration data.
How many people are named Lenni?
357 babies have been named Lenni in the United States since 1966, based on Social Security card applications.
When was the name Lenni most popular?
Lenni peaked in 2023, when 52 newborns received the name.
Is Lenni a boy or girl name?
Lenni is overwhelmingly a girl's name — 96% of babies with the name.
Is the name Lenni rising or falling?
Lenni is on the rise — noticeably more popular now than a decade ago.