How old is someone named Alannah?
The average Alannah is 17 years old.
Half of all living Alannahs are between 9 and 23.
When was Alannah popular?
Alannah had one big moment, peaking in 2015. 58% of the babies ever named Alannah arrived in a single 15-year stretch.
Popular names of 2015 · The most popular names of the 2010s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1940s | 6 | 0 |
| 1980s | 93 | under 100 |
| 1990s | 1,177 | 1,200 |
| 2000s | 2,095 | 2,100 |
| 2010s | 3,005 | 3,000 |
| 2020s | 1,016 | 1,000 |
How many Alannahs are still alive?
About 7,300 Alannahs are alive in the US today. That's 99% of the roughly 7,400 babies named Alannah since 1948.
Nearly every Alannah ever born is still alive, because almost all of them are young.
What generation is the name Alannah?
About two in five living Alannahs are in Gen Z, born between 1997 and 2012.
- Millennial 12%
- Gen Z 45%
- Gen Alpha 43%
Is Alannah an old name?
No. Alannah is one of the youngest names around: younger than 78 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Alannah will be 35 in 2056, so the name is getting older.
Is Alannah a boy or girl name?
Almost entirely girls: over 99.9% of living Alannahs are women.
Names the same age as Alannah
NAME TWIN
Alannah's name twin is Skyla. Of all 3,713 names on AgeByName, Skyla's age curve is the closest match to Alannah's: 90% alike.
Other spellings: Alana (24) · Alaina (19) · Alayna (16) · Alanna (23)
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Questions about the name Alannah
How old is the average Alannah?
The average Alannah in the US is 17 years old. The median is 15, so half are older and half younger.
How many people are named Alannah?
About 7,300 Alannahs are alive in the US today, out of roughly 7,400 babies given the name since 1948.
When was the name Alannah most popular?
In 2015, when about 370 baby girls were named Alannah.
Is Alannah a Gen Z name?
Partly. Gen Z are the largest group, about 45% of living Alannahs, 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