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Cyd vs Cydney

American parents have registered 5,170 Cydneys since 1880, against 556 Cyds. Cydney is still ahead, with 9 babies in 2025.

Babies given each name, 1880–2025

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

Cyd Cydney

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 80 years in which either name was published, Cydney for 78 years and Cyd for 2 years. The lead changed hands 4 times.

Side by side

  Cyd Cydney
Total US births 5565,170
Most in one year 45230
Babies in 2025 under 59
Estimated living today 4705,000
Median age today 6528
Peak year 19541998
Best rank 1,505th girls921st girls
Rank in 2025 unranked10,107th
First recorded 19471942
Girls / boys 556 / 05,145 / 25

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 Cyds alive today are over 65; half the Cydneys are over 28. That is 37 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 Cyd Cydney
England and Wales 6500

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: Cyd and Cydney.