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Petra vs Petrina

American parents have registered 14,626 Petras since 1880, against 2,107 Petrinas. Petra is still ahead, with 161 babies in 2025.

Babies given each name, 1880–2025

Births per year: Petra against Petrina, 1880 to 2025 0 60 120 180 240 1880 1900 1920 1940 1960 1980 2000 2020

Petra Petrina

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

Petra has been the commoner name in every year either was published, 1881 to 2025. The lead has never changed hands.

The closest they came was 1975, when Petra had 101 and Petrina had 79.

Side by side

  Petra Petrina
Total US births 14,6262,107
Most in one year 20599
Babies in 2025 161under 5
Estimated living today 9,1001,600
Median age today 4053
Peak year 19271971
Best rank 498th girls1,164th girls
Rank in 2025 1,367thunranked
First recorded 18811900
Girls / boys 14,559 / 672,107 / 0

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 Petras are over 40. That is 13 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 Petra Petrina
England and Wales 69228
Ireland 8793

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: Petra and Petrina.