Humanverse

Kay vs Kaya

American parents have registered 102,545 Kays since 1880, against 10,976 Kayas. But in 2025 it was Kaya that was commoner, 221 babies to 47.

Babies given each name, 1880–2025

Births per year: Kay against Kaya, 1880 to 2025 0 1k 2k 3k 4k 1880 1900 1920 1940 1960 1980 2000 2020

Kay Kaya

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 142 years in which either name was published, Kay for 111 years and Kaya for 31 years. The lead changed hands once.

Side by side

  Kay Kaya
Total US births 102,54510,976
Most in one year 3,718561
Babies in 2025 47221
Estimated living today 62,00011,000
Median age today 7317
Peak year 19422004
Best rank 75th girls541st girls
Rank in 2025 3,903rd1,132nd
First recorded 18821968
Girls / boys 98,621 / 3,92410,314 / 662

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 Kays alive today are over 73; half the Kayas are over 17. That is 56 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 Kay Kaya
England and Wales 4722,771
Norway 84317
Scotland 566143
Switzerland 235438
Poland 13657
France 70425
Belgium 150124
Ireland 23184

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: Kay and Kaya.