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Kasey vs Kasyn

American parents have registered 45,949 Kaseys since 1880, against 1,663 Kasyns. Kasey is still ahead, with 285 babies in 2025.

Babies given each name, 1880–2025

Births per year: Kasey against Kasyn, 1880 to 2025 0 500 1k 1.5k 2k 1880 1900 1920 1940 1960 1980 2000 2020

Kasey Kasyn

Each line is every baby given the name that year, girls and boys added together — the only count that means the same thing for both names. A line breaks where the name fell below five babies in a year — the point at which the SSA stops publishing it — rather than being drawn through a figure nobody published. A single published year in a gap shows as a dot.

Who was ahead

Kasey has been the commoner name in every year either was published, 1950 to 2025. The lead has never changed hands.

The closest they came was 2020, when Kasey had 248 and Kasyn had 114.

Side by side

  Kasey Kasyn
Total US births 45,9491,663
Most in one year 1,800114
Babies in 2025 28594
Estimated living today 45,0001,700
Median age today 338
Peak year 19922020
Best rank 204th girls1,579th boys
Rank in 2025 1,872nd1,793rd
First recorded 19502003
Girls / boys 33,326 / 12,623250 / 1,413

A rank is a position within one sex’s list for one year, so the two rank rows are not subtracted from one another and the winning column is not marked on them. The living figure is a life-table estimate, not a count.

Which name is older

Half of the Kaseys alive today are over 33; half the Kasyns are over 8. That is 25 years between them: two names in use at the same time, worn by two different generations.

Where each one is strongest

How much commoner the name is in that state than it is nationally, from births recorded since 1910.

Compare something else

Related comparisons

Social Security Administration birth records, 1880–2025, public domain. Full histories: Kasey and Kasyn.