In 2025, 614 US boys were named Caspian, making it the 491st most common boys’ name of the year, up 86 places from #577 in 2024. That is 120 more than the 494 boys named Caspian in 2024. Its best rank for boys was #491, reached in this year, 2025. That year also had the most boys given the name: 614. For comparison, it was #1,547 in 2015 and unranked in 1950.
Social Security card records list Caspian in 28 years of the 146 from 1880 to 2025, starting in 1998 with 9 babies. In all, 4,175 US babies have been given the name, 0.1% of them girls and 99.8% boys. Its busiest decade was the 2020s, with 2,572 babies named Caspian.
Over the 10 years from 2016 to 2025, 3,555 US boys were named Caspian; the busiest of those years was 2025, with 614. In 2025 that was about 1 in 2,782 of the boys in SSA’s list for the year.
Among the states, Caspian ranked highest in Maine in 2025, at #129 for boys there. It was not in the top 100 of any state. Rarer spellings such as Kaspian, Caspen and Caspin are summarised on this page.