In 2025, 867 US girls were named Thea, making it the 353rd most common girls’ name of the year, down 4 places from #349 in 2024. That is 30 fewer than the 897 girls named Thea in 2024. Its best rank for girls was #268, reached in 2017. The most girls given the name in a single year was 1,209, in 2018. For comparison, it was #464 in 2015 and #996 in 1950.
Social Security card records list Thea in 144 years of the 146 from 1880 to 2025, starting in 1880 with 6 babies. In all, 20,118 US babies have been given the name, all of them girls. Its busiest decade was the 2010s, with 6,408 babies named Thea.
Over the 10 years from 2016 to 2025, 10,573 US girls were named Thea; the busiest of those years was 2018, with 1,209. In 2025 that was about 1 in 1,854 of the girls in SSA’s list for the year.
Among the states, Thea ranked highest in Nebraska in 2025, at #131 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Tea (2,493 babies since 1880), Theo (39,333 babies since 1880), Tia (33,896 babies since 1880) and Tye (5,580 babies since 1880). Rarer spellings such as Teeya are summarised on this page.
Meaning
Meaning not yet researched.
We publish a meaning only with a cited source and a confidence label, and never generate one. Meanings are being researched for the most common names first.
Wikidata records this spelling as a given name in Dutch and Swedish. That is where the name is used, not necessarily where it comes from.