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Dena vs Dennis

American parents have registered 623,692 Dennises since 1880, against 32,535 Denas. Dennis is still ahead, with 381 babies in 2025.

Babies given each name, 1880–2025

Births per year: Dena against Dennis, 1880 to 2025 0 8k 16k 24k 32k 1880 1900 1920 1940 1960 1980 2000 2020

Dena Dennis

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

Dennis 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 1894, when Dena had 63 and Dennis had 84.

Side by side

  Dena Dennis
Total US births 32,535623,692
Most in one year 1,54224,605
Babies in 2025 30381
Estimated living today 26,000408,000
Median age today 5567
Peak year 19701952
Best rank 208th girls18th boys
Rank in 2025 4,546th707th
First recorded 18801880
Girls / boys 32,479 / 562,692 / 621,000

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 Dennises alive today are over 67; half the Denas are over 55. That is 12 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 Dena Dennis
England and Wales 1372,725
Belgium 5831
France 15530

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: Dena and Dennis.