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Dennis vs Denzil

American parents have registered 623,692 Dennises since 1880, against 3,843 Denzils. Dennis is still ahead, with 381 babies in 2025.

Babies given each name, 1880–2025

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

Dennis Denzil

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 1920, when Dennis had 632 and Denzil had 80.

Side by side

  Dennis Denzil
Total US births 623,6923,843
Most in one year 24,60596
Babies in 2025 381under 5
Estimated living today 408,0001,500
Median age today 6761
Peak year 19521937
Best rank 18th boys588th boys
Rank in 2025 707thunranked
First recorded 18801897
Girls / boys 2,692 / 621,00068 / 3,775

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 Denzils are over 61. That is 6 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 Dennis Denzil
England and Wales 2,725134

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: Dennis and Denzil.