Meaning not yet researched.
Lennyn: US girls given the name each year, 1880 to 2025, from Social Security card applications. 136 in 2025. Its best rank was #1,552 in 2025.
US births per year · SSA card applications
Its highest rank in 146 years of records is this year’s. About 96% of babies named Lennyn in 2025 were girls.
Baby name · US data 1880–2025
#1,552 for US girls in 2025, its highest rank in 146 years of records.
Hover, tap or use the arrow keys for any year. Years with fewer than five babies of a sex are not published by SSA and show as zero.
Lennyn: US girls and boys given the name each year from 1880 to 2025. 136 girls in 2025. Peak: #1,552 in 2025 · most girls in one year: 136 (2025).
In 2025, 136 US girls were named Lennyn, making it the 1,552nd most common girls’ name of the year, up 248 places from #1,800 in 2024. That is 24 more than the 112 girls named Lennyn in 2024. Its best rank for girls was #1,552, reached in this year, 2025. That year also had the most girls given the name: 136. For comparison, it was #5,762 in 2015 and unranked in 1950.
In 2025, 6 US boys were named Lennyn, making it the 11,453rd most common boys’ name of the year, up 1,985 places from #13,438 in 2024. That is 1 more than the 5 boys named Lennyn in 2024. Its best rank for boys was #6,754, reached in 2001. The most boys given the name in a single year was 12, in 2009. For comparison, it was unranked (under five boys) in 2015 and unranked in 1950.
Social Security card records list Lennyn in 21 years of the 146 from 1880 to 2025, starting in 2001 with 10 babies. In all, 930 US babies have been given the name, 87% of them girls and 13% boys. Its busiest decade was the 2020s, with 601 babies named Lennyn.
Over the 10 years from 2016 to 2025, 741 US girls were named Lennyn; the busiest of those years was 2025, with 136. In 2025 that was about 1 in 11,818 of the girls in SSA’s list for the year.
Among the states, Lennyn ranked highest in South Dakota in 2025, at #213 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Lennon (20,579 babies since 1880) and Lenin (1,727 babies since 1880).
Meaning not yet researched.
We publish a meaning only with a cited source and a confidence label, and never generate one. Meanings are being researched for the most common names first.
Numbers are all-time US births. Links come from Wikidata’s “said to be the same as” (P460, CC0) and our spelling rule: at most two letters different, with the same sound pattern.
No nicknames listed for Lennyn in the open dataset we use.
Source: carltonnorthern/nicknames (Apache-2.0).
US girls. Rank within each state. SSA leaves out states where fewer than five girls got the name, so 40 are not listed.
| State | Births 2025 | Rank 2025 | Rank 2015 |
|---|---|---|---|
| South Dakota | 6 | #213 | — |
| Michigan | 14 | #576 | — |
| Iowa | 5 | #637 | — |
| Wisconsin | 7 | #672 | — |
| Minnesota | 7 | #698 | — |
| Kentucky | 5 | #808 | — |
| Pennsylvania | 10 | #897 | — |
| Ohio | 9 | #1,003 | — |
| North Carolina | 7 | #1,226 | — |
| Florida | 8 | #1,628 | — |
| Texas | 6 | #3,144 | — |
Births and national rank for each year SSA lists the name, newest first.
| Year | Girls | Girls rank | Boys | Boys rank |
|---|---|---|---|---|
| 2025 | 136 | #1,552 | 6 | #11,453 |
| 2024 | 112 | #1,800 | 5 | #13,438 |
| 2023 | 93 | #2,083 | 8 | #9,422 |
| 2022 | 99 | #1,985 | — | — |
| 2021 | 72 | #2,472 | 7 | #10,357 |
| 2020 | 63 | #2,674 | — | — |
| 2019 | 46 | #3,427 | 5 | #13,328 |
| 2018 | 32 | #4,412 | 7 | #10,305 |
| 2017 | 42 | #3,669 | 9 | #8,555 |
| 2016 | 46 | #3,445 | 9 | #8,550 |
| 2015 | 23 | #5,762 | — | — |
| 2014 | 18 | #6,880 | 7 | #10,292 |
| 2013 | 7 | #14,025 | — | — |
| 2012 | 8 | #12,904 | — | — |
| 2011 | 7 | #14,187 | 6 | #11,704 |
| 2010 | — | — | 5 | #13,481 |
| 2009 | 5 | #18,969 | 12 | #7,076 |
| 2008 | — | — | 10 | #8,061 |
| 2007 | — | — | 10 | #7,945 |
| 2003 | — | — | 5 | #12,010 |
| 2001 | — | — | 10 | #6,754 |
About the data: counts are Social Security card applications for US births, for names given to at least five babies of a sex in a year (SSA, names.zip, public domain). Ranks follow SSA’s own order: most births first, ties alphabetical. Files retrieved 2026-10-05 (checksum on our sources page).