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Shelly vs Shelsea

American parents have registered 86,610 Shellys since 1880, against 658 Shelseas. Shelly is still ahead, with 21 babies in 2025.

Babies given each name, 1880–2025

Births per year: Shelly against Shelsea, 1880 to 2025 0 1.3k 2.5k 3.8k 5k 1880 1900 1920 1940 1960 1980 2000 2020

Shelly Shelsea

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

Shelly has been the commoner name in every year either was published, 1882 to 2025. The lead has never changed hands.

The closest they came was 2011, when Shelly had 39 and Shelsea had 22.

Side by side

  Shelly Shelsea
Total US births 86,610658
Most in one year 4,12736
Babies in 2025 215
Estimated living today 77,000650
Median age today 5625
Peak year 19641997
Best rank 101st girls3,224th girls
Rank in 2025 5,722nd14,942nd
First recorded 18821971
Girls / boys 84,420 / 2,190658 / 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 Shellys alive today are over 56; half the Shelseas are over 25. That is 31 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 Shelly Shelsea
France 770275
Belgium 1095

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: Shelly and Shelsea.