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Kenneth vs Kenzo

American parents have registered 1,289,312 Kenneths since 1880, against 4,695 Kenzos. Kenneth is still ahead, with 1,148 babies in 2025.

Babies given each name, 1880–2025

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

Kenneth Kenzo

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

Kenneth 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 2022, when Kenneth had 1,312 and Kenzo had 596.

Side by side

  Kenneth Kenzo
Total US births 1,289,3124,695
Most in one year 28,145596
Babies in 2025 1,148445
Estimated living today 779,0004,600
Median age today 614
Peak year 19572022
Best rank 14th boys505th boys
Rank in 2025 294th628th
First recorded 18801920
Girls / boys 5,338 / 1,283,9745 / 4,690

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 Kenneths alive today are over 61; half the Kenzos are over 4. That is 57 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 Kenneth Kenzo
France 71515,950
Ireland 6,54313
Scotland 5,03014
England and Wales 1,1351,021
Belgium 7481,350
Switzerland 72334
Northern Ireland 263

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: Kenneth and Kenzo.