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Katelyn vs Kathaleen

American parents have registered 134,206 Katelyns since 1880, against 4,136 Kathaleens. Katelyn is still ahead, with 225 babies in 2025.

Babies given each name, 1880–2025

Births per year: Katelyn against Kathaleen, 1880 to 2025 0 1.5k 3k 4.5k 6k 1880 1900 1920 1940 1960 1980 2000 2020

Katelyn Kathaleen

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

Of the 122 years in which either name was published, Kathaleen for 73 years and Katelyn for 49 years. The lead changed hands once.

Side by side

  Katelyn Kathaleen
Total US births 134,2064,136
Most in one year 5,975143
Babies in 2025 225under 5
Estimated living today 132,0002,400
Median age today 2668
Peak year 19931952
Best rank 54th girls741st girls
Rank in 2025 1,076thunranked
First recorded 19701902
Girls / boys 134,049 / 1574,136 / 0

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 Kathaleens alive today are over 68; half the Katelyns are over 26. That is 42 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.

Both names abroad

Countries whose statistics office publishes both names, so the comparison can be made somewhere other than the United States.

Country Katelyn Kathaleen
France 10020

Every spelling a country files separately is added together, over whatever years that country publishes — which is not the same range in any two of them, so read the columns against each other and not the rows.

Compare something else

Related comparisons

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