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Sianna vs Siar

American parents have registered 2,052 Siannas since 1880, against 80 Siars. Sianna is still ahead, with 87 babies in 2025.

Babies given each name, 1880–2025

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

Sianna Siar

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

Sianna has been the commoner name in every year either was published, 1978 to 2025. The lead has never changed hands.

The closest they came was 2019, when Sianna had 62 and Siar had 14.

Side by side

  Sianna Siar
Total US births 2,05280
Most in one year 9817
Babies in 2025 8713
Estimated living today 2,00080
Median age today 143
Peak year 20242021
Best rank 1,997th girls5,338th boys
Rank in 2025 2,139th6,446th
First recorded 19782019
Girls / boys 2,052 / 00 / 80

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 Siannas alive today are over 14; half the Siars are over 3. That is 11 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 Sianna Siar
England and Wales 628145
France 42585
Switzerland 13184
Belgium 105

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: Sianna and Siar.