Humanverse

Kelly vs Kelsee

American parents have registered 556,365 Kellys since 1880, against 1,748 Kelsees. Kelly is still ahead, with 403 babies in 2025.

Babies given each name, 1880–2025

Births per year: Kelly against Kelsee, 1880 to 2025 0 6k 12k 18k 24k 1880 1900 1920 1940 1960 1980 2000 2020

Kelly Kelsee

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

Kelly 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 2016, when Kelly had 723 and Kelsee had 25.

Side by side

  Kelly Kelsee
Total US births 556,3651,748
Most in one year 20,197113
Babies in 2025 403under 5
Estimated living today 510,0001,700
Median age today 4828
Peak year 19771993
Best rank 10th girls1,426th girls
Rank in 2025 851stunranked
First recorded 18801980
Girls / boys 473,965 / 82,4001,748 / 0

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 Kellys alive today are over 48; half the Kelsees 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 Kelly Kelsee
England and Wales 4,35313

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: Kelly and Kelsee.