How old is someone named Brendan?
The average Brendan is 30 years old.
Half of all living Brendans are between 22 and 37.
When was Brendan popular?
Brendan peaked in 1999 and has been given less and less ever since. Only 195 babies got the name in 2025.
Popular names of 1999 · The most popular names of the 1990s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1910s | 85 | 0 |
| 1920s | 165 | 0 |
| 1930s | 289 | under 100 |
| 1940s | 444 | 190 |
| 1950s | 984 | 670 |
| 1960s | 3,442 | 2,800 |
| 1970s | 6,969 | 6,300 |
| 1980s | 14,708 | 14,000 |
| 1990s | 28,630 | 28,000 |
| 2000s | 25,898 | 25,000 |
| 2010s | 8,908 | 8,800 |
| 2020s | 1,619 | 1,600 |
How many Brendans are still alive?
About 87,000 Brendans are alive in the US today. That's 95% of the roughly 92,000 babies named Brendan since 1912.
Nearly every Brendan ever born is still alive, because almost all of them are young.
What generation is the name Brendan?
About half of living Brendans are in Gen Z, born between 1997 and 2012.
- Boomer 2%
- Gen X 11%
- Millennial 34%
- Gen Z 47%
- Gen Alpha 7%
Is Brendan an old name?
Somewhat. Brendan is older than 52 in 100 names on AgeByName, but younger than plenty of classics.
Looking ahead: if babies keep getting the name at today's pace, the typical Brendan will be 55 in 2056, so the name is aging fast.
Is Brendan a boy or girl name?
Almost entirely boys: 99.6% of living Brendans are men.
Names the same age as Brendan
NAME TWIN
Brendan's name twin is Brendon. Of all 3,713 names on AgeByName, Brendon's age curve is the closest match to Brendan's: 94% alike.
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Questions about the name Brendan
How old is the average Brendan?
The average Brendan in the US is 30 years old. The median is 29, so half are older and half younger.
How many people are named Brendan?
About 87,000 Brendans are alive in the US today, out of roughly 92,000 babies given the name since 1912.
When was the name Brendan most popular?
In 1999, when about 4,000 baby boys were named Brendan.
Is Brendan a Gen Z name?
Partly. Gen Z are the largest group, about 47% of living Brendans, 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