In 2025, 255 US boys were named Casper, making it the 924th most common boys’ name of the year, down 43 places from #881 in 2024. That is 19 fewer than the 274 boys named Casper in 2024. Its best rank for boys was #332, reached in 1889. The most boys given the name in a single year was 274, in 2024. For comparison, it was #1,755 in 2015 and #1,621 in 1950.
Social Security card records list Casper in every one of the 146 years from 1880 to 2025; in 1880 there were 15 babies with the name. In all, 6,229 US babies have been given the name, 0.3% of them girls and 99.6% boys. Its busiest decade was the 2020s, with 1,277 babies named Casper.
Over the 10 years from 2016 to 2025, 1,756 US boys were named Casper; the busiest of those years was 2024, with 274. In 2025 that was about 1 in 6,698 of the boys in SSA’s list for the year.
Among the states, Casper ranked highest in Oregon in 2025, at #443 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Kasper (1,409 babies since 1880) and Kacper (1,102 babies since 1880). Rarer spellings such as Gaspar, Gaspare and Caspar are summarised on this page. The open nickname list we use links it to Jasper.