In 2025, 318 US boys were named Teo, making it the 794th most common boys’ name of the year, down 33 places from #761 in 2024. That is 17 fewer than the 335 boys named Teo in 2024. Its best rank for boys was #761, reached in 2024. That year also had the most boys given the name: 335. For comparison, it was #1,752 in 2015 and unranked in 1950.
Social Security card records list Teo in 49 years of the 146 from 1880 to 2025, starting in 1968 with 5 babies. In all, 2,987 US babies have been given the name, all of them boys. Its busiest decade was the 2020s, with 1,485 babies named Teo.
Over the 10 years from 2016 to 2025, 1,957 US boys were named Teo; the busiest of those years was 2024, with 335. In 2025 that was about 1 in 5,371 of the boys in SSA’s list for the year.
Among the states, Teo ranked highest in California in 2025, at #396 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Theo (39,333 babies since 1880), Ty (48,344 babies since 1880), Tia (33,896 babies since 1880) and Thea (20,118 babies since 1880). Rarer spellings such as Tegh are summarised on this page.