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Kasen vs Kasper

American parents have registered 11,538 Kasens since 1880, against 1,409 Kaspers. Kasen is still ahead, with 628 babies in 2025.

Babies given each name, 1880–2025

Births per year: Kasen against Kasper, 1880 to 2025 0 200 400 600 800 1880 1900 1920 1940 1960 1980 2000 2020

Kasen Kasper

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 49 years in which either name was published, Kasen for 34 years and Kasper for 15 years. The lead changed hands once.

Side by side

  Kasen Kasper
Total US births 11,5381,409
Most in one year 74296
Babies in 2025 62884
Estimated living today 11,0001,300
Median age today 98
Peak year 20192024
Best rank 419th boys1,735th boys
Rank in 2025 483rd1,867th
First recorded 19921912
Girls / boys 124 / 11,41420 / 1,389

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.

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 Kasen Kasper
England and Wales 961,479
Ireland 743
Northern Ireland 78

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: Kasen and Kasper.