Total births
809
Unisex name · since 2009
Lennyn
Lennyn has 809 recorded births since 2009 in federal Social Security data, most heavily in 2025 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #1808
- among girls today
- 809
- born since 2009
- 2020s
- peak decade
- 90%
- more common than other girls
Yes -- Lennyn is the #1808 most popular unisex name in the U.S. today, with 809 recorded since 2009.
According to the U.S. Social Security Administration, Lennyn has been recorded 809 times among girls since 2009, currently ranked #1808 nationally and more common than 90% of girls, with its heaviest use in the 2020s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 2009 to 2025.
- #1808 among girls today
- 809 born since 2009
- 2020s peak decade
- 90% more common than other girls
Data updated Jun 2026
The verdict
Lennyn is currently the #1808 unisex name in America, more common than 90% of girls - 809 born since 2009, peaking in the 2020s.
- #1808
- among girls today
- 809
- born since 2009
- 2020s
- peak decade
- 90%
- more common than other girls
Lennyn vs. every other girls name in current SSA rankings
#1808
of 17,726 girls in use
More common than 90% of names given to girls today.
2020s
Peak decade
71% of everyone ever named Lennyn was born in this single decade.
2025
Single peak year
136 babies were named Lennyn in 2025 - its busiest year on record.
How Lennyn compares
809 Top 35% higher than 65% of 17,726 names currently given to girls
Based on all-time total births among currently-ranked girls names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Lennyn's all-time total is 112% above the median girls name, and Olivia still leads by a wide margin.
| Metric | Lennyn | Median girls name (Emerly) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 809 | 382 | 567,345 |
| Peak-year births | 136 | 48 | 19,840 |
Lennyn's usage pattern, beyond the headline number
Splitting Lennyn's full recorded timeline at 2018, 81% of its total births fall in the more recent half of the record versus 19% in the earlier half -- usage has skewed toward the present, not a one-decade spike. Its quietest year on record was 2009, with just 5 recorded births -- worth weighing against the 2025 peak of 136 to see the full range of the name's swing in popularity.
Lennyn at a glance
Outside the top 1,000Peak year
2025
Current rank
#1,808
Active since
2009
Lennyn popularity over time - girls
Annual U.S. births registered with the Social Security Administration · 2009–2025
- Peak year (2025)
- 136
- Annual births at peak, across 17 years of records
Lennyn popularity over time - boys
121 total births recorded since 2001 (Lennyn as boys' name)
Lennyn by decade
Total births in each ten-year window, peak vs trough at a glance
2020s was Lennyn's strongest decade.
575 babies received the name during that ten-year window, about 71% of all-time use.
Lennyn births by decade
Total births in each ten-year window
- 2000s 5
2000s
5 births
- 2010s 229
2010s
229 births
- 2020s
2020s
575 births
What this shows Peak: 2020s at 575 births (71% of all-time use).
How Lennyn compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 girls names closest to Lennyn's total volume
Lennyn vs 15 similarly-sized girls names
Lennyn by state
Where Lennyn concentrates geographically, total births since 2009
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Michigan | | 33 | 4.1% |
| #2 | Utah | | 25 | 3.1% |
| #3 | Wisconsin | | 25 | 3.1% |
| #4 | Iowa | | 23 | 2.8% |
| #5 | Florida | | 18 | 2.2% |
| #6 | South Dakota | | 18 | 2.2% |
| #7 | Minnesota | | 17 | 2.1% |
| #8 | Pennsylvania | | 15 | 1.9% |
Michigan share of Lennyn's total US births 4.1%
Even split
33 of 809 births nationwide. Compared to a flat distribution across 18 reporting states.
Lennyn appears in 18 states. Explore state details →
Frequently Asked Questions
How popular is the name Lennyn? ▼
Since 2009, Social Security records show 809 babies named Lennyn. Today it holds rank #1808 among girls. Its busiest year on record was 2025, with 136 births.
When was Lennyn most popular? ▼
Lennyn was most popular in the 2020s decade with 575 total births. The single peak year was 2025.
Where is Lennyn most popular? ▼
The top states for the name Lennyn are Michigan (33 births), Utah (25 births), Wisconsin (25 births).
Is Lennyn a unisex name? ▼
Yes, Lennyn is used for both boys and girls. As a girl's name it has 809 births, and as a boy's name it has 121 births.
How long has the name Lennyn been used? ▼
Lennyn has been recorded in Social Security data since 2009, spanning 17 years of data through 2025.
What names are similar to Lennyn? ▼
Names with a similar sound or spelling include Lena, Lenora, Lenore, Lennon, and 4 more. These share a common prefix and are also used for girls.
What to do with Lennyn's data
- Michigan records the most Lennyns (33 births) -- see the full state breakdown if geography matters to your decision. Michigan names
- Weighing it against an alternative? Put two names side by side. Compare names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Lennyn
Nearby Names Like Lennyn
Names with a similar sound, spelling, or feel to Lennyn
Lena Girl
#262 146,479 births
Lenora Girl
#715 37,058 births
Lenore Girl
#2011 22,968 births
Lennon Girl
#235 12,576 births
Lennox Girl
#688 5,409 births
Compare Lennyn side by side: Lennyn vs Lena Lennyn vs Lenora Lennyn vs Lenore
Related Names
Names with a similar popularity rank to Lennyn
Nahomi #1807
1,912 births · Peak 2024
Rumani #1809
300 births · Peak 2024
Dayanna #1806
3,916 births · Peak 2009
Philomena #1810
9,951 births · Peak 1922
Nailah #1805
4,848 births · Peak 2018
Margarita #1811
40,219 births · Peak 1957
Lucianna #1804
1,961 births · Peak 2024
Maura #1812
19,965 births · Peak 1964
Data Sources
Data as of June 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 2009–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Lennyn: #1808 Unisex Name - 809 Births, Peak 2025." NameAlmanac. Accessed via https://namealmanac.com/name/lennyn. Licensed CC BY-SA 4.0.
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Lennyn draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.