How old is someone named Lilian?
The average Lilian is 19 years old.
Half of all living Lilians are between 10 and 24.
When was Lilian popular?
Lilian is a comeback name. It was common in the early 1900s, nearly disappeared by mid-century, and has returned, peaking again in 2007.
Popular names of 2007 · The most popular names of the 2000s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 282 | 0 |
| 1910s | 637 | 0 |
| 1920s | 453 | 0 |
| 1930s | 173 | under 100 |
| 1940s | 154 | under 100 |
| 1950s | 190 | 150 |
| 1960s | 315 | 280 |
| 1970s | 475 | 450 |
| 1980s | 717 | 690 |
| 1990s | 1,817 | 1,800 |
| 2000s | 5,783 | 5,700 |
| 2010s | 5,935 | 5,900 |
| 2020s | 3,046 | 3,000 |
How many Lilians are still alive?
About 18,000 Lilians are alive in the US today. That's 89% of the roughly 20,000 babies named Lilian since 1880.
Most Lilians ever born are still alive.
What generation is the name Lilian?
About half of living Lilians are in Gen Z, born between 1997 and 2012.
- Boomer 2%
- Gen X 4%
- Millennial 9%
- Gen Z 47%
- Gen Alpha 38%
Is Lilian an old name?
Not really. Lilian is younger than 73 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Lilian will be 32 in 2056, so the name is aging slowly.
Is Lilian a boy or girl name?
Almost entirely girls: over 99.9% of living Lilians are women.
Names the same age as Lilian
NAME TWIN
Lilian's name twin is Natalia. Of all 3,713 names on AgeByName, Natalia's age curve is the closest match to Lilian's: 93% alike.
Other spellings: Lillian (29)
Compare: Lilian vs. Lillian
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Questions about the name Lilian
How old is the average Lilian?
The average Lilian in the US is 19 years old. The median is 17, so half are older and half younger.
How many people are named Lilian?
About 18,000 Lilians are alive in the US today, out of roughly 20,000 babies given the name since 1880.
When was the name Lilian most popular?
In 2007, when about 790 baby girls were named Lilian.
Is Lilian a Gen Z name?
Partly. Gen Z are the largest group, about 47% of living Lilians, 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