Lenny Boy & girl
How popular is Lenny?
#1,418 boy name in 2025
128 baby boys were named Lenny in the US in 2025, making it the 1418th most popular boy name. Another 61 girls got the name (#2,778 for girls).
7,853living people named Lenny (est.)
40median age of people named Lenny
9,035babies named Lenny since 1880
1 in 17,541US babies born in 2025
Lenny popularity over time
Boys Girls
| Rank in 2025 | #1,418 for boys (▼ 47 from 2024) |
|---|---|
| Babies in 2025 | 128 boys, 61 girls |
| 10-year trend | Falling (-22% babies vs 2015) |
| Earlier ranks | #1,141 in 2015, #1,655 in 2020 |
| Peak year | 1961 (199 boys) |
| Highest rank | #555 in 1961 |
| First recorded | 1914 |
| Boys vs girls (last 10 years) | 76% boys, 24% girls |
| Chance a classmate shares it | 0.1% in a class of 25 kids born in 2025 |
Where Lenny is most popular
Babies named Lenny per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFL
- New York: 0.1 per 1,000 (60 boys)
- Washington: 0.1 per 1,000 (21 boys)
- California: 0.1 per 1,000 (99 boys)
- New Jersey: 0.1 per 1,000 (21 boys)
- Florida: 0.1 per 1,000 (39 boys)
Lenny by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1910s | 13 | #3,114 |
| 1920s | 41 | #3,153 |
| 1930s | 111 | #1,425 |
| 1940s | 511 | #773 |
| 1950s | 994 | #603 |
| 1960s | 1,514 | #555 |
| 1970s | 1,192 | #700 |
| 1980s | 665 | #903 |
| 1990s | 495 | #1,437 |
| 2000s | 839 | #1,467 |
| 2010s | 1,195 | #1,141 |
| 2020s | 729 | #1,371 |
Boy names about as popular as Lenny
Questions
- Is Lenny a boy or girl name?
- Lenny is used for both. Over the last 10 years, 76% of babies named Lenny were boys and 24% were girls.
- How popular is the name Lenny?
- 128 baby boys were named Lenny in the US in 2025, making it the 1418th most popular boy name. Another 61 girls got the name (#2,778 for girls).
- When was Lenny most popular?
- Lenny peaked in 1961, when 199 boys were given the name. Its highest rank was #555 in 1961.
- How many people are named Lenny?
- 9,035 babies have been named Lenny in the US since 1880. We estimate about 7,853 of them are alive in 2026, with a median age of 40.
- Where is Lenny most popular?
- From 2021 to 2025, Lenny was most common in New York, at 0.1 of every 1,000 boys born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.