Lenny
Boy name · #1419 in 2025 · Very rare
How old is the name Lenny? In official American birth records, Lenny has been tracked continuously since 1914, giving it 111 years of documented American history.
Lenny is currently the #1419 boy name in the United States — 128 babies received it in 2025. A decade ago it stood at #1141, so the name has been falling over the past ten years. Roughly one in every 14,063 boys born in 2025 was named Lenny.
Babies named Lenny per year. Source: Official national birth records.
The 111-year story
Lenny first appears in the Social Security records in 1914, when 5 boys received the name. Its peak came in 1961, when 199 boys were named Lenny — good for #555 that year. Today's parents encounter it as a name from their grandparents’ generation, which is precisely the vintage window from which names get revived. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Unlock the 5-year forecast and compare Lenny against up to 5 other names.
Uniqueness: will there be another Lenny in class?
On our rarity read — which blends how common Lenny is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Lenny will likely be the only one in the room, with the occasional spelling-out as the price.
Where Lenny is most common
State-level data for Lenny is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Lenny
Statistically, parents drawn to Lenny tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Kenny, Benny, Ronny, Danny, and Eddy.
KennyBennyRonnyDannyEddyVincePerryLyndon
Rank history (last 25 years)
| Year | Babies named Lenny | Rank |
|---|---|---|
| 2025 | 128 | #1418 |
| 2024 | 137 | #1371 |
| 2023 | 133 | #1390 |
| 2022 | 122 | #1479 |
| 2021 | 113 | #1546 |
| 2020 | 96 | #1655 |
| 2019 | 105 | #1582 |
| 2018 | 94 | #1679 |
| 2017 | 96 | #1644 |
| 2016 | 122 | #1421 |
| 2015 | 165 | #1141 |
| 2014 | 96 | #1619 |
| 2013 | 115 | #1433 |
| 2012 | 119 | #1398 |
| 2011 | 139 | #1244 |
| 2010 | 144 | #1228 |
| 2009 | 98 | #1618 |
| 2008 | 102 | #1565 |
| 2007 | 99 | #1576 |
| 2006 | 104 | #1467 |
| 2005 | 88 | #1573 |
| 2004 | 81 | #1604 |
| 2003 | 60 | #1936 |
| 2002 | 81 | #1529 |
| 2001 | 64 | #1763 |
Frequently asked questions
How old is the name Lenny?
In official American birth records, the name Lenny first appeared in 1914 (over 111 years ago), when 5 newborn boys received the name. It has been tracked in modern national records for 111 years.
Is Lenny a popular boy name?
Lenny ranked #1419 among boys in 2025 with 128 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #1141.
When was the name Lenny most popular?
Lenny peaked in 1961, when 199 American boys received the name (ranked #555 that year). Since 1961 the name has declined from that high.
How rare is the name Lenny?
In 2025, roughly 1 in 14,063 newborn American boys was named Lenny. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.