Humanverse

Thais vs Thalia

American parents have registered 16,264 Thalias since 1880, against 2,225 Thaises. Thalia is still ahead, with 446 babies in 2025.

Babies given each name, 1880–2025

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

Thais Thalia

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 124 years in which either name was published, Thalia for 119 years and Thais for 5 years. The lead changed hands 6 times.

Side by side

  Thais Thalia
Total US births 2,22516,264
Most in one year 84700
Babies in 2025 26446
Estimated living today 1,60015,000
Median age today 2521
Peak year 20011993
Best rank 2,013th girls363rd girls
Rank in 2025 4,987th647th
First recorded 19091885
Girls / boys 2,225 / 016,264 / 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.

Which name is older

Half of the Thaises alive today are over 25; half the Thalias are over 21. That is 4 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 Thais Thalia
France 18,760 Thaïs5,155
England and Wales 841,679
Belgium 594 Thaïs763
Switzerland 395 Thaïs457

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: Thais and Thalia.