Humanverse

Petrina vs Petros

American parents have registered 2,107 Petrinas since 1880, against 715 Petroses. But in 2025 it was Petros that was commoner, 9 babies to fewer than five.

Babies given each name, 1880–2025

Births per year: Petrina against Petros, 1880 to 2025 0 25 50 75 100 1880 1900 1920 1940 1960 1980 2000 2020

Petrina Petros

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, Petrina for 79 years and Petros for 37 years. The lead changed hands once.

Side by side

  Petrina Petros
Total US births 2,107715
Most in one year 9920
Babies in 2025 under 59
Estimated living today 1,600690
Median age today 5327
Peak year 19712007
Best rank 1,164th girls4,640th boys
Rank in 2025 unranked8,243rd
First recorded 19001964
Girls / boys 2,107 / 00 / 715

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 Petrinas alive today are over 53; half the Petroses are over 27. That is 26 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 Petrina Petros
England and Wales 28142

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: Petrina and Petros.