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Cosimo vs Cosme

American parents have registered 1,373 Cosmes since 1880, against 1,016 Cosimos. But in 2025 it was Cosimo that was commoner, 16 babies to 12.

Babies given each name, 1880–2025

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

Cosimo Cosme

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

Of the 116 years in which either name was published, Cosme for 67 years and Cosimo for 49 years. The lead changed hands 21 times.

14 shorter spells of a year or two are folded into the spans above rather than listed separately.

Side by side

  Cosimo Cosme
Total US births 1,0161,373
Most in one year 3025
Babies in 2025 1612
Estimated living today 5001,000
Median age today 3235
Peak year 19272000
Best rank 1,350th boys3,299th boys
Rank in 2025 5,608th6,803rd
First recorded 19111909
Girls / boys 0 / 1,0160 / 1,373

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 Cosmes alive today are over 35; half the Cosimos are over 32. That is 3 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 Cosimo Cosme
France 280350

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: Cosimo and Cosme.