In 2025, 42 US boys were named Leviathan, making it the 2,964th most common boys’ name of the year, down 666 places from #2,298 in 2024. That is 20 fewer than the 62 boys named Leviathan in 2024. Its best rank for boys was #1,761, reached in 2020. That year also had the most boys given the name: 87. For comparison, it was #2,747 in 2015 and unranked in 1950.
Social Security card records list Leviathan in 29 years of the 146 from 1880 to 2025, starting in 1991 with 7 babies. In all, 863 US babies have been given the name, all of them boys. Its busiest decade was the 2020s, with 396 babies named Leviathan.
Over the 10 years from 2016 to 2025, 602 US boys were named Leviathan; the busiest of those years was 2020, with 87. In 2025 that was about 1 in 40,668 of the boys in SSA’s list for the year.
Among the states, Leviathan ranked highest in Ohio in 2025, at #1,399 for boys there. It was not in the top 100 of any state.