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Cyril vs Cyrill

American parents have registered 12,131 Cyrils since 1880, against 36 Cyrills. Cyril is still ahead, with 38 babies in 2025.

Babies given each name, 1880–2025

Births per year: Cyril against Cyrill, 1880 to 2025 0 100 200 300 400 1880 1900 1920 1940 1960 1980 2000 2020

Cyril Cyrill

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

Cyril has been the commoner name in every year either was published, 1880 to 2025. The lead has never changed hands.

The closest they came was 1920, when Cyril had 282 and Cyrill had 7.

Side by side

  Cyril Cyrill
Total US births 12,13136
Most in one year 3387
Babies in 2025 38under 5
Estimated living today 4,1000
Median age today 48104
Peak year 19161916
Best rank 283rd boys3,177th boys
Rank in 2025 3,128thunranked
First recorded 18801915
Girls / boys 97 / 12,0340 / 36

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 Cyrills alive today are over 104; half the Cyrils are over 48. That is 56 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 Cyril Cyrill
France 88,440410
Belgium 2,5755
Switzerland 803821

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: Cyril and Cyrill.