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Kelly vs Kelsie

American parents have registered 556,365 Kellys since 1880, against 19,936 Kelsies. Kelly is still ahead, with 403 babies in 2025.

Babies given each name, 1880–2025

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

Kelly Kelsie

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 Kelsie had 229.

Side by side

  Kelly Kelsie
Total US births 556,36519,936
Most in one year 20,1971,228
Babies in 2025 40382
Estimated living today 510,00019,000
Median age today 4829
Peak year 19771993
Best rank 10th girls230th girls
Rank in 2025 851st2,239th
First recorded 18801908
Girls / boys 473,965 / 82,40019,591 / 345

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 Kelsies are over 29. That is 19 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 Kelsie
France 25,770120
Scotland 6,303353
England and Wales 4,3531,841
Ireland 3,35777
Northern Ireland 14668

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 Kelsie.