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Kathryn vs Katlyn

American parents have registered 456,515 Kathryns since 1880, against 18,438 Katlyns. Kathryn is still ahead, with 381 babies in 2025.

Babies given each name, 1880–2025

Births per year: Kathryn against Katlyn, 1880 to 2025 0 2.5k 5k 7.5k 10k 1880 1900 1920 1940 1960 1980 2000 2020

Kathryn Katlyn

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

Kathryn has been the commoner name in every year either was published, 1880 to 2025. The lead has never changed hands.

The closest they came was 1998, when Kathryn had 3,703 and Katlyn had 1,183.

Side by side

  Kathryn Katlyn
Total US births 456,51518,438
Most in one year 8,5171,260
Babies in 2025 38112
Estimated living today 315,00018,000
Median age today 4828
Peak year 19521995
Best rank 48th girls223rd girls
Rank in 2025 729th8,362nd
First recorded 18801979
Girls / boys 455,423 / 1,09218,433 / 5

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 Kathryns alive today are over 48; half the Katlyns are over 28. That is 20 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 Kathryn Katlyn
England and Wales 4,791219
Scotland 2,62056
Ireland 1,25095
Northern Ireland 43327
France 115100

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: Kathryn and Katlyn.