In 2025, 8,605 US boys were named Sebastian, making it the 16th most common boys’ name of the year, down 2 places from #14 in 2024. That is 12 more than the 8,593 boys named Sebastian in 2024. Its best rank for boys was #13, reached in 2023. The most boys given the name in a single year was 10,309, in 2016. For comparison, it was #35 in 2015 and #1,103 in 1950.
Social Security card records list Sebastian in 136 years of the 146 from 1880 to 2025, starting in 1881 with 6 babies. In all, 218,463 US babies have been given the name, 0.2% of them girls and 99.8% boys. Its busiest decade was the 2010s, with 86,811 babies named Sebastian.
Over the 10 years from 2016 to 2025, 93,981 US boys were named Sebastian; the busiest of those years was 2016, with 10,309. In 2025 that was about 1 in 198 of the boys in SSA’s list for the year.
Among the states, Sebastian ranked highest in California in 2025, at #5 for boys there. It was in the top 100 in 46 states (counting DC). Related spellings in the SSA files include Bastian (2,614 babies since 1880) and Sebastien (4,057 babies since 1880). Rarer spellings such as Sebastiano, Sebastion and Sevastian are summarised on this page. The open nickname list we use links it to Seb and Sebby.
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, English, German, Polish, Romanian and Slovene. That is where the name is used, not necessarily where it comes from.