US rank #1370 Unisex name Peak 1961 8,170 births

Lenny — #1370 US boys' name

8,170 babies named Lenny in U.S. Social Security records since 1914, with the highest year being 1961. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1910s131920s411930s1111940s5111950s9941960s15141970s11921980s6651990s4952000s8392010s11942020s601
#1370
of 14,243 boys in use

More common than 90% of names given to boys today.

1960s
Peak decade

19% of everyone ever named Lenny was born in this single decade.

1961
Single peak year

199 babies were named Lenny in 1961 — its busiest year on record.

What the Data Says About Lenny

The Social Security Administration has registered 8,170 babies named Lenny between 1914 and 2024, spanning 111 consecutive years of U.S. birth records. As a boy's name, Lenny currently holds the #1370 rank among boys for 2024. The name reached its historical peak in 1961, when 199 babies received it in a single year. Lenny is classified as unisex in SSA records: the opposite-sex variant accounts for 675 additional births since 1943.

Decade-level aggregation shows that Lenny performed strongest in the 1960s, accumulating 1,514 births during that ten-year window. Across the 12 decades of recorded activity, Lenny shows notable generational variation in parental adoption. Geographically, the name is most concentrated in New York, which accounts for 1,426 births — the largest state-level total in the dataset — followed by California and Texas. In total, SSA state-level files list Lenny in 29 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Lenny in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 8,170 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.

Lenny at a glance

Outside the top 1,000

Total births

8,170

Since 1914

111 years of records

Peak year

1961

199 births that year

Strongest decade: 1960s

Current rank

#1,370

Among boys

As of 2024

Active since

1914

Recorded for 111 years

Last year on file: 2024

Lenny popularity over time — boys

Annual U.S. births registered with the Social Security Administration · 2024–1914

Outside the top 1,000
Peak year (1961)
199
Annual births at peak — across 111 years of records
-50050100150200250 202420111998198519721959194619331914 5

Lenny popularity over time — girls

675 total births recorded since 1943 (Lenny as girls' name)

Unisex variant — 675 births
0204060 20242016200719951979196319541943 7

Lenny by decade

Total births in each ten-year window — peak vs trough at a glance

Peak: 1960s
Peak decade
1960s
1,514 births that decade — 19% of Lenny's all-time total
1910s131920s411930s1111940s5111950s9941960s15141970s11921980s6651990s4952000s8392010s11942020s601

Lenny by state

Where Lenny concentrates geographically — total births since 1914

Geographically diffuse
Top 8 states by recorded births for the name Lenny
Rank State Visual share Births Share of total
#1 New York
1,426 17.5%
#2 California
953 11.7%
#3 Texas
363 4.4%
#4 New Jersey
281 3.4%
#5 Florida
221 2.7%
#6 Illinois
219 2.7%
#7 Ohio
186 2.3%
#8 Pennsylvania
156 1.9%
New York share of Lenny's total US births 17.5%
Even split

1,426 of 8,170 births nationwide. Compared to a flat distribution across 29 reporting states.

Lenny appears in 29 states. Explore state details →

Frequently Asked Questions

How popular is the name Lenny?
8,170 babies have been named Lenny since 1914. It currently ranks #1370 among boys. The peak year was 1961 with 199 births.
When was Lenny most popular?
Lenny was most popular in the 1960s decade with 1,514 total births. The single peak year was 1961.
Where is Lenny most popular?
The top states for the name Lenny are New York (1,426 births), California (953 births), Texas (363 births).
Is Lenny a unisex name?
Yes, Lenny is used for both boys and girls. As a boy's name it has 8,170 births, and as a girl's name it has 675 births.
How long has the name Lenny been used?
Lenny has been recorded in Social Security data since 1914, spanning 111 years of data through 2024.
What names are similar to Lenny?
Names with a similar sound or spelling include Lennox, Lenard, Lennon, Len, and 4 more. These share a common prefix and are also used for boys.

Keep exploring Lenny

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Data Sources

Data as of 2024. Source: U.S. Social Security Administration (SSA).

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1914–2024 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.

State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.