In 2025, 505 US boys were named Seth, making it the 581st most common boys’ name of the year, down 26 places from #555 in 2024. That is 30 fewer than the 535 boys named Seth in 2024. Its best rank for boys was #63, reached in 2000. That year also had the most boys given the name: 6,717. For comparison, it was #270 in 2015 and #594 in 1950.
Social Security card records list Seth in every one of the 146 years from 1880 to 2025; in 1880 there were 25 babies with the name. In all, 166,288 US babies have been given the name, 0.3% of them girls and 99.7% boys. Its busiest decade was the 2000s, with 48,259 babies named Seth.
Over the 10 years from 2016 to 2025, 7,474 US boys were named Seth; the busiest of those years was 2016, with 1,169. In 2025 that was about 1 in 3,382 of the boys in SSA’s list for the year.
Among the states, Seth ranked highest in Indiana in 2025, at #299 for boys there. It was not in the top 100 of any state. Rarer spellings such as Zeth, Seith and Ceth are summarised on this page.