How old is someone named Kailani?
The average Kailani is 8 years old.
Half of all living Kailanis are between 3 and 10.
When was Kailani popular?
Kailani is a modern favorite: it climbed through the 2000s and hit its high in 2022. 1,215 babies got the name in 2025.
Popular names of 2022 · The most popular names of the 2020s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1980s | 59 | under 100 |
| 1990s | 204 | 200 |
| 2000s | 1,158 | 1,100 |
| 2010s | 4,080 | 4,100 |
| 2020s | 7,322 | 7,300 |
How many Kailanis are still alive?
About 13,000 Kailanis are alive in the US today. That's over 99% of the roughly 13,000 babies named Kailani since 1980.
Nearly every Kailani ever born is still alive, because almost all of them are young.
What generation is the name Kailani?
About four in five living Kailanis are in Gen Alpha, born in 2013 or later.
- Millennial 1%
- Gen Z 15%
- Gen Alpha 84%
Is Kailani an old name?
No. Kailani is one of the youngest names around: younger than 98 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Kailani will be 21 in 2056, so the name is aging slowly.
Is Kailani a boy or girl name?
Almost entirely girls: 99.6% of living Kailanis are women.
Names the same age as Kailani
NAME TWIN
Kailani's name twin is Milani. Of all 3,713 names on AgeByName, Milani's age curve is the closest match to Kailani's: 94% alike.
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Questions about the name Kailani
How old is the average Kailani?
The average Kailani in the US is 8 years old. The median is 6, so half are older and half younger.
How many people are named Kailani?
About 13,000 Kailanis are alive in the US today, out of roughly 13,000 babies given the name since 1980.
When was the name Kailani most popular?
In 2022, when about 1,400 baby girls were named Kailani.
Is Kailani a Gen Alpha name?
Yes. About 84% of living Kailanis 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