How old is someone named Leslie?
The average Leslie is 50 years old.
Half of all living Leslies are between 36 and 66.
When was Leslie popular?
Leslie peaked in 1957 and has been given less and less ever since. Only 425 babies got the name in 2025.
Popular names of 1957 · The most popular names of the 1950s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 2,855 | 0 |
| 1910s | 11,415 | 0 |
| 1920s | 16,306 | 100 |
| 1930s | 13,689 | 1,900 |
| 1940s | 34,245 | 18,000 |
| 1950s | 64,430 | 48,000 |
| 1960s | 68,177 | 59,000 |
| 1970s | 52,033 | 49,000 |
| 1980s | 42,593 | 41,000 |
| 1990s | 28,729 | 28,000 |
| 2000s | 32,022 | 32,000 |
| 2010s | 10,234 | 10,000 |
| 2020s | 2,952 | 2,900 |
How many Leslies are still alive?
About 290,000 Leslies are alive in the US today. That's 75% of the roughly 380,000 babies named Leslie since 1880.
Most Leslies ever born are still alive.
What generation is the name Leslie?
About one in three living Leslies are Baby Boomers, born between 1946 and 1964.
Is Leslie an old name?
Yes. Leslie is older than 78 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Leslie will be 64 in 2056, so the name is aging slowly.
Is Leslie a boy or girl name?
Mostly a girl's name: 83% of living Leslies are women, and 17% are men.
The women average 48 and the men 63.
Names the same age as Leslie
NAME TWIN
Leslie's name twin is Michel. Of all 3,713 names on AgeByName, Michel's age curve is the closest match to Leslie's: 94% alike.
Other spellings: Lesley (46) · Lesly (23) · Lesli (41)
Compare: Leslie vs. Lesly · Lesley vs. Leslie
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Questions about the name Leslie
How old is the average Leslie?
The average Leslie in the US is 50 years old. The median is 53, so half are older and half younger.
How many people are named Leslie?
About 290,000 Leslies are alive in the US today, out of roughly 380,000 babies given the name since 1880.
When was the name Leslie most popular?
In 1957, when about 8,200 baby girls were named Leslie.
Is Leslie a Boomer name?
Partly. Baby Boomers are the largest group, about 31% of living Leslies, but the name spans several generations.
Estimates from Social Security Administration baby-name records (births 1880–2025) and SSA cohort life tables (2026 Trustees Report). Updated each spring. How we calculate this