In 2025, 6,917 US boys were named Thomas, making it the 34th most common boys’ name of the year, up 5 places from #39 in 2024. That is 321 more than the 6,596 boys named Thomas in 2024. Its best rank for boys was #8, reached in 1955. The most boys given the name in a single year was 48,647, in 1952. For comparison, it was #51 in 2015 and #8 in 1950.
Social Security card records list Thomas in every one of the 146 years from 1880 to 2025; in 1880 there were 2,542 babies with the name. In all, 2,367,087 US babies have been given the name, 0.4% of them girls and 99.6% boys. Its busiest decade was the 1950s, with 455,339 babies named Thomas.
Over the 10 years from 2016 to 2025, 67,843 US boys were named Thomas; the busiest of those years was 2016, with 7,367. In 2025 that was about 1 in 247 of the boys in SSA’s list for the year.
Among the states, Thomas ranked highest in Mississippi in 2025, at #10 for boys there. It was in the top 100 in 50 states (counting DC). Related spellings in the SSA files include Tommy (181,675 babies since 1880), Tom (140,370 babies since 1880), Tommie (52,215 babies since 1880) and Tomas (30,730 babies since 1880). Rarer spellings such as Tommi, Toma and Thom are summarised on this page. The open nickname list we use links it to Thom, Tom and Tommy.