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Kirsten vs Kirsty

American parents have registered 53,393 Kirstens since 1880, against 945 Kirstys. Kirsten is still ahead, with 60 babies in 2025.

Babies given each name, 1880–2025

Births per year: Kirsten against Kirsty, 1880 to 2025 0 500 1k 1.5k 2k 1880 1900 1920 1940 1960 1980 2000 2020

Kirsten Kirsty

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

Kirsten has been the commoner name in every year either was published, 1937 to 2025. The lead has never changed hands.

The closest they came was 1991, when Kirsten had 1,938 and Kirsty had 99.

Side by side

  Kirsten Kirsty
Total US births 53,393945
Most in one year 1,93899
Babies in 2025 60under 5
Estimated living today 51,000920
Median age today 3434
Peak year 19911991
Best rank 154th girls1,555th girls
Rank in 2025 2,822ndunranked
First recorded 19371961
Girls / boys 53,181 / 212945 / 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.

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 Kirsten Kirsty
Scotland 2,84513,036
England and Wales 2,2376,384
New Zealand 1,1832,083
Ireland 391627
Northern Ireland 219456
Belgium 60519
France 28020

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: Kirsten and Kirsty.