In 2025, 719 US boys were named Jasai, making it the 439th most common boys’ name of the year, up 775 places from #1,214 in 2024. That is 552 more than the 167 boys named Jasai in 2024. Its best rank for boys was #439, reached in this year, 2025. That year also had the most boys given the name: 719. For comparison, it was #3,111 in 2015 and unranked in 1950.
Social Security card records list Jasai in 23 years of the 146 from 1880 to 2025, starting in 2002 with 6 babies. In all, 1,660 US babies have been given the name, 0.8% of them girls and 99% boys. Its busiest decade was the 2020s, with 1,226 babies named Jasai.
Over the 10 years from 2016 to 2025, 1,406 US boys were named Jasai; the busiest of those years was 2025, with 719. In 2025 that was about 1 in 2,376 of the boys in SSA’s list for the year.
Among the states, Jasai ranked highest in Delaware in 2025, at #185 for boys there. It was not in the top 100 of any state. Rarer spellings such as Jaysa, Jaisa and Jahsai are summarised on this page.