How old is someone named Leonidas?
The average Leonidas is 11 years old.
Half of all living Leonidases are between 4 and 12.
When was Leonidas popular?
Leonidas has been rising for years and peaked in 2022, so most Leonidases are still kids.
Popular names of 2022 · The most popular names of the 2020s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 5 | 0 |
| 1910s | 128 | 0 |
| 1920s | 180 | 0 |
| 1930s | 108 | under 100 |
| 1940s | 71 | under 100 |
| 1950s | 83 | under 100 |
| 1960s | 112 | under 100 |
| 1970s | 134 | 120 |
| 1980s | 142 | 130 |
| 1990s | 135 | 130 |
| 2000s | 733 | 730 |
| 2010s | 4,479 | 4,400 |
| 2020s | 3,923 | 3,900 |
How many Leonidases are still alive?
About 9,600 Leonidases are alive in the US today. That's 94% of the roughly 10,000 babies named Leonidas since 1880.
Nearly every Leonidas ever born is still alive, because almost all of them are young.
What generation is the name Leonidas?
About four in five living Leonidases are in Gen Alpha, born in 2013 or later.
- Boomer 1%
- Gen X 2%
- Millennial 2%
- Gen Z 16%
- Gen Alpha 79%
Is Leonidas an old name?
No. Leonidas is one of the youngest names around: younger than 92 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Leonidas will be 23 in 2056, so the name is aging slowly.
Is Leonidas a boy or girl name?
Almost entirely boys: over 99.9% of living Leonidases are men.
Names the same age as Leonidas
NAME TWIN
Leonidas's name twin is Oliver. Of all 3,713 names on AgeByName, Oliver's age curve is the closest match to Leonidas's: 92% alike.
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Questions about the name Leonidas
How old is the average Leonidas?
The average Leonidas in the US is 11 years old. The median is 8, so half are older and half younger.
How many people are named Leonidas?
About 9,600 Leonidases are alive in the US today, out of roughly 10,000 babies given the name since 1880.
When was the name Leonidas most popular?
In 2022, when about 760 baby boys were named Leonidas.
Is Leonidas a Gen Alpha name?
Yes. About 79% of living Leonidases are in Gen Alpha, born in 2013 or later.
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