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Sydnee vs Sydni

American parents have registered 8,255 Sydnees since 1880, against 5,361 Sydnis. Sydnee is still ahead, with 14 babies in 2025.

Babies given each name, 1880–2025

Births per year: Sydnee against Sydni, 1880 to 2025 0 150 300 450 600 1880 1900 1920 1940 1960 1980 2000 2020

Sydnee Sydni

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 69 years in which either name was published, Sydnee for 59 years and Sydni for 10 years. The lead changed hands 14 times.

11 shorter spells of a year or two are folded into the spans above rather than listed separately.

Side by side

  Sydnee Sydni
Total US births 8,2555,361
Most in one year 506468
Babies in 2025 148
Estimated living today 8,1005,300
Median age today 2324
Peak year 20032000
Best rank 548th girls557th girls
Rank in 2025 7,491st10,917th
First recorded 19451947
Girls / boys 8,255 / 05,361 / 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.

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 Sydnee Sydni
England and Wales 19068

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: Sydnee and Sydni.