How old is someone named Finnegan?
The average Finnegan is 10 years old.
Half of all living Finnegans are between 5 and 15.
When was Finnegan popular?
Finnegan is a modern favorite: it climbed through the 2000s and hit its high in 2021. 575 babies got the name in 2025.
Popular names of 2021 · The most popular names of the 2020s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1990s | 83 | under 100 |
| 2000s | 2,212 | 2,200 |
| 2010s | 6,690 | 6,600 |
| 2020s | 4,130 | 4,100 |
How many Finnegans are still alive?
About 13,000 Finnegans are alive in the US today. That's over 99% of the roughly 13,000 babies named Finnegan since 1995.
Nearly every Finnegan ever born is still alive, because almost all of them are young.
What generation is the name Finnegan?
About two in three living Finnegans are in Gen Alpha, born in 2013 or later.
Is Finnegan an old name?
No. Finnegan is one of the youngest names around: younger than 94 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Finnegan will be 26 in 2056, so the name is getting older.
Is Finnegan a boy or girl name?
Almost entirely boys: 99.2% of living Finnegans are men.
Names the same age as Finnegan
NAME TWIN
Finnegan's name twin is Joziah. Of all 3,713 names on AgeByName, Joziah's age curve is the closest match to Finnegan's: 95% alike.
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Questions about the name Finnegan
How old is the average Finnegan?
The average Finnegan in the US is 10 years old. The median is 10, so half are older and half younger.
How many people are named Finnegan?
About 13,000 Finnegans are alive in the US today, out of roughly 13,000 babies given the name since 1995.
When was the name Finnegan most popular?
In 2021, when about 870 baby boys were named Finnegan.
Is Finnegan a Gen Alpha name?
Yes. About 71% of living Finnegans 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