How old is someone named Libby?
The average Libby is 36 years old.
Half of all living Libbys are between 15 and 60. The average sits between a large young group and an older one, so many Libbys are much younger than 36.
When was Libby popular?
Libby is a modern favorite: it climbed through the 2000s and hit its high in 2009. 202 babies got the name in 2025.
Popular names of 2009 · The most popular names of the 2000s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 205 | 0 |
| 1910s | 809 | 0 |
| 1920s | 772 | under 100 |
| 1930s | 951 | 210 |
| 1940s | 1,168 | 680 |
| 1950s | 1,674 | 1,300 |
| 1960s | 2,070 | 1,800 |
| 1970s | 1,120 | 1,100 |
| 1980s | 887 | 860 |
| 1990s | 1,214 | 1,200 |
| 2000s | 2,863 | 2,800 |
| 2010s | 2,754 | 2,700 |
| 2020s | 1,307 | 1,300 |
How many Libbys are still alive?
About 14,000 Libbys are alive in the US today. That's 78% of the roughly 18,000 babies named Libby since 1881.
Most Libbys ever born are still alive.
What generation is the name Libby?
About one in four living Libbys are in Gen Z, born between 1997 and 2012.
Is Libby an old name?
Somewhat. Libby is older than 61 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 Libby will be 39 in 2056, about the same as today.
Is Libby a boy or girl name?
Almost entirely girls: over 99.9% of living Libbys are women.
Names the same age as Libby
NAME TWIN
Libby's name twin is Greta. Of all 3,713 names on AgeByName, Greta's age curve is the closest match to Libby's: 89% alike.
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Questions about the name Libby
How old is the average Libby?
The average Libby in the US is 36 years old. The median is 27, so half are older and half younger.
How many people are named Libby?
About 14,000 Libbys are alive in the US today, out of roughly 18,000 babies given the name since 1881.
When was the name Libby most popular?
In 2009, when about 360 baby girls were named Libby.
Is Libby a Gen Z name?
Partly. Gen Z are the largest group, about 30% of living Libbys, 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