Humanverse

Kaiori vs Kaitlin

American parents have registered 57,430 Kaitlins since 1880, against 83 Kaioris. Kaitlin is still ahead, with 35 babies in 2025.

Babies given each name, 1880–2025

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

Kaiori Kaitlin

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

Kaitlin has been the commoner name in every year either was published, 1971 to 2025. The lead has never changed hands.

The closest they came was 2025, when Kaiori had 24 and Kaitlin had 35.

Side by side

  Kaiori Kaitlin
Total US births 8357,430
Most in one year 243,612
Babies in 2025 2435
Estimated living today 8056,000
Median age today 231
Peak year 20251995
Best rank 5,238th girls94th girls
Rank in 2025 5,238th4,067th
First recorded 20211971
Girls / boys 78 / 557,355 / 75

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 Kaitlins alive today are over 31; half the Kaioris are over 2. That is 29 years between them: two names in use at the same time, worn by two different generations.

Compare something else

Related comparisons

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