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Caelin vs Caelyn

American parents have registered 2,426 Caelyns since 1880, against 769 Caelins. Caelyn is still ahead, with 24 babies in 2025.

Babies given each name, 1880–2025

Births per year: Caelin against Caelyn, 1880 to 2025 0 50 100 150 200 1880 1900 1920 1940 1960 1980 2000 2020

Caelin Caelyn

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 38 years in which either name was published, Caelyn for 33 years and Caelin for 5 years. The lead changed hands 2 times.

Side by side

  Caelin Caelyn
Total US births 7692,426
Most in one year 48198
Babies in 2025 524
Estimated living today 7602,400
Median age today 2115
Peak year 20032012
Best rank 4,418th girls1,251st girls
Rank in 2025 unranked5,238th
First recorded 19921987
Girls / boys 430 / 3392,421 / 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 Caelins alive today are over 21; half the Caelyns are over 15. That is 6 years between them: two names in use at the same time, worn by two different generations.

Both names abroad

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

Country Caelin Caelyn
England and Wales 655
Ireland 67
Scotland 39

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: Caelin and Caelyn.