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Nikolai vs Nikolaus

American parents have registered 11,027 Nikolais since 1880, against 2,656 Nikolauses. Nikolai is still ahead, with 469 babies in 2025.

Babies given each name, 1880–2025

Births per year: Nikolai against Nikolaus, 1880 to 2025 0 200 400 600 800 1880 1900 1920 1940 1960 1980 2000 2020

Nikolai Nikolaus

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 65 years in which either name was published, Nikolai for 43 years and Nikolaus for 22 years. The lead changed hands 7 times.

Side by side

  Nikolai Nikolaus
Total US births 11,0272,656
Most in one year 63998
Babies in 2025 46924
Estimated living today 11,0002,600
Median age today 1029
Peak year 20161994
Best rank 480th boys1,146th boys
Rank in 2025 605th4,249th
First recorded 19601955
Girls / boys 0 / 11,0270 / 2,656

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 Nikolauses alive today are over 29; half the Nikolais are over 10. That is 19 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 Nikolai Nikolaus
England and Wales 5156
Poland 5712

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: Nikolai and Nikolaus.