Humanverse

Louis vs Loukas

American parents have registered 409,317 Louises since 1880, against 666 Loukases. Louis is still ahead, with 1,397 babies in 2025.

Babies given each name, 1880–2025

Births per year: Louis against Loukas, 1880 to 2025 0 2k 4k 6k 8k 1880 1900 1920 1940 1960 1980 2000 2020

Louis Loukas

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

Louis 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 2013, when Louis had 1,070 and Loukas had 33.

Side by side

  Louis Loukas
Total US births 409,317666
Most in one year 7,29641
Babies in 2025 1,39739
Estimated living today 169,000660
Median age today 589
Peak year 19212021
Best rank 29th boys2,972nd boys
Rank in 2025 249th3,089th
First recorded 18801972
Girls / boys 2,847 / 406,4700 / 666

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 Louises alive today are over 58; half the Loukases are over 9. That is 49 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 Louis Loukas
France 542,2702,525
England and Wales 36,928161
Belgium 16,230261
Switzerland 5,43527
Scotland 2,1953
Poland 3152

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: Louis and Loukas.