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Petrina vs Petrus

American parents have registered 2,107 Petrinas since 1880, against 5 Petruses. Neither name reached five babies in 2025.

Babies given each name, 1880–2025

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

Petrina Petrus

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 97 years in which either name was published, Petrina for 96 years and Petrus for 1 year. The lead changed hands once.

Side by side

  Petrina Petrus
Total US births 2,1075
Most in one year 995
Babies in 2025 under 5under 5
Estimated living today 1,6005
Median age today 5313
Peak year 19712012
Best rank 1,164th girls12,274th boys
Rank in 2025 unrankedunranked
First recorded 19002012
Girls / boys 2,107 / 00 / 5

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 Petruses are over 13. That is 40 years between them: two names in use at the same time, worn by two different generations.

Both names abroad

Countries whose statistics office publishes both names, so the comparison can be made somewhere other than the United States.

Country Petrina Petrus
England and Wales 286

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 Petrus.