How old is someone named Kelby?
The average Kelby is 29 years old.
Half of all living Kelbys are between 21 and 36.
When was Kelby popular?
Parents have been choosing Kelby less often since its peak in 1991; 32 babies got the name in 2025.
Popular names of 1991 · The most popular names of the 1990s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1940s | 10 | under 100 |
| 1950s | 63 | under 100 |
| 1960s | 86 | under 100 |
| 1970s | 501 | 450 |
| 1980s | 752 | 710 |
| 1990s | 1,979 | 1,900 |
| 2000s | 1,298 | 1,300 |
| 2010s | 679 | 670 |
| 2020s | 214 | 210 |
How many Kelbys are still alive?
About 5,400 Kelbys are alive in the US today. That's 96% of the roughly 5,600 babies named Kelby since 1948.
Nearly every Kelby ever born is still alive, because almost all of them are young.
What generation is the name Kelby?
About two in five living Kelbys are in Gen Z, born between 1997 and 2012.
- Boomer 1%
- Gen X 10%
- Millennial 38%
- Gen Z 39%
- Gen Alpha 11%
Is Kelby an old name?
Somewhat. Kelby is older than 50 in 100 names on AgeByName, but younger than plenty of classics.
Is Kelby a boy or girl name?
Mostly a boy's name: 71% of living Kelbys are men, and 29% are women.
The women average 25 and the men 31.
Names the same age as Kelby
NAME TWIN
Kelby's name twin is Darius. Of all 3,713 names on AgeByName, Darius's age curve is the closest match to Kelby's: 91% alike.
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Questions about the name Kelby
How old is the average Kelby?
The average Kelby in the US is 29 years old. The median is 29, so half are older and half younger.
How many people are named Kelby?
About 5,400 Kelbys are alive in the US today, out of roughly 5,600 babies given the name since 1948.
When was the name Kelby most popular?
In 1991, when about 280 baby boys were named Kelby.
Is Kelby a Gen Z name?
Partly. Gen Z are the largest group, about 39% of living Kelbys, but the name spans several generations.
Is Kelby a boy or girl name?
Mostly a boy's name: 71% of living Kelbys are men, and 29% are women. The women average 25 and the men 31.
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