Katlyn
About 18,438 American babies have been named Katlyn since 1979, most of them around 1995. In 2025 it ranked 8,362nd. About 18,000 Katlyns are alive in the United States today, and half of them are over 28.
Popularity, 1880–2025
girls named Katlyn boys named Katlyn
By the numbers
- Total US births
- 18,438
- Estimated living today
- 18,000
- Median age today
- 28
- Peak year
- 1995
- Best rank
- 223rd
- Rank in 2025
- 8,362nd
- First recorded
- 1979
- Girls / boys
- 18,433 / 5
How old the living Katlyns are
born that year still alive today
Of the 18,438 babies given the name since 1979, about 18,000 are alive — 98 in every hundred. Roughly 1,100 of them are children and 0 are 65 or over. The dotted line is the median: half were born before 1997 and half after.
An estimate, not a count. SSA births aged forward through SSA cohort life tables, which know nothing about who left the country or arrived in it — so for a name that mostly came to America rather than being born in it, this is a floor rather than a figure. Where you fall among living Americans.
Where Katlyn is most common
Relative to how many babies each state records, Katlyn is most concentrated in Kentucky (1.8×), Tennessee (1.8×), North Carolina (1.7×), West Virginia (1.6×).
Total births recorded in each state since 1910. Browse names by state.
Names of 1995
The most popular girls’ names the year Katlyn peaked:
Katlyn elsewhere
| Country | Spelling | Births | Best rank |
|---|---|---|---|
| England and Wales girls | Katlyn | 219 | 962nd |
| France girls | Katlyn | 100 | 7,478th |
| Ireland girls | Katlyn | 95 | 238th |
| Scotland girls | Katlyn | 56 | 346th |
| Northern Ireland girls | Katlyn | 27 | 213th |
Counts come from each country's own records and are not comparable with the US figures above, which cover different years and a different definition of a recorded name. Where a country writes the name several ways, the spellings are added together and the most common is shown. A row marked name registrations is counting something else: Portugal ranks each of a child's two given names separately, so a girl registered Maria Leonor is in both the Maria row and the Leonor row, and that figure is not a number of children.
Related names
Katlyn against another name
Two names on one chart, with the year one overtook the other.
Try it on yourself
Source: US Social Security Administration, national and state baby-name files, 1880–2025. Counts include only births registered with the SSA, and names with fewer than five births in a year are not published. The living estimate applies SSA cohort life tables to those births; it counts people born in the United States, so it misses anyone who arrived later and anyone who has left.