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Sylas vs Sylvester

American parents have registered 43,857 Sylvesters since 1880, against 8,966 Sylases. But in 2025 it was Sylas that was commoner, 732 babies to 64.

Babies given each name, 1880–2025

Births per year: Sylas against Sylvester, 1880 to 2025 0 250 500 750 1k 1880 1900 1920 1940 1960 1980 2000 2020

Sylas Sylvester

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 146 years in which either name was published, Sylvester for 124 years and Sylas for 22 years. The lead changed hands once.

Side by side

  Sylas Sylvester
Total US births 8,96643,857
Most in one year 732819
Babies in 2025 73264
Estimated living today 8,90018,000
Median age today 762
Peak year 20251920
Best rank 440th boys174th boys
Rank in 2025 440th2,207th
First recorded 19751880
Girls / boys 77 / 8,889627 / 43,230

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 Sylvesters alive today are over 62; half the Sylases are over 7. That is 55 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 Sylas Sylvester
France 28580
England and Wales 65237
Belgium 55

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: Sylas and Sylvester.