Humanverse

Luka vs Lukas

American parents have registered 44,072 Lukases since 1880, against 29,522 Lukas. But in 2025 it was Luka that was commoner, 3,898 babies to 1,161.

Babies given each name, 1880–2025

Births per year: Luka against Lukas, 1880 to 2025 0 1k 2k 3k 4k 1880 1900 1920 1940 1960 1980 2000 2020

Luka Lukas

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 62 years in which either name was published, Lukas for 56 years and Luka for 6 years. The lead changed hands once.

Side by side

  Luka Lukas
Total US births 29,52244,072
Most in one year 3,8981,787
Babies in 2025 3,8981,161
Estimated living today 29,00043,000
Median age today 414
Peak year 20252019
Best rank 85th boys214th boys
Rank in 2025 85th288th
First recorded 19751963
Girls / boys 563 / 28,95919 / 44,053

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 Lukases alive today are over 14; half the Lukas are over 4. That is 10 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 Luka Lukas
Austria 1,27939,563
France 11,6659,645
England and Wales 3,6025,073
Belgium 2,7774,504
Switzerland 2,0885,142
Norway 6655,030
Italy 9482,214
Poland 470668
Ireland 464601
Scotland 260398
New Zealand 56370
Northern Ireland 111191

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: Luka and Lukas.