In 2025, 85 US boys were named Sai, making it the 1,863rd most common boys’ name of the year, up 304 places from #2,167 in 2024. That is 17 more than the 68 boys named Sai in 2024. Its best rank for boys was #1,863, reached in this year, 2025. That year also had the most boys given the name: 85. For comparison, it was #2,454 in 2015 and unranked in 1950.
In 2025, 8 US girls were named Sai, making it the 11,745th most common girls’ name of the year, down 5,144 places from #6,601 in 2024. That is 10 fewer than the 18 girls named Sai in 2024. Its best rank for girls was #5,288, reached in 2020. That year also had the most girls given the name: 24. For comparison, it was #11,679 in 2015 and unranked in 1950.
Social Security card records list Sai in 47 years of the 146 from 1880 to 2025, starting in 1972 with 5 babies. In all, 2,159 US babies have been given the name, 21% of them girls and 79% boys. Its busiest decade was the 2010s, with 680 babies named Sai.
Over the 10 years from 2016 to 2025, 679 US boys were named Sai; the busiest of those years was 2025, with 85. In 2025 that was about 1 in 20,095 of the boys in SSA’s list for the year.
Among the states, Sai ranked highest in New Jersey in 2025, at #1,154 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Saya (1,305 babies since 1880) and Zaia (627 babies since 1880). Rarer spellings such as Sae, Sa and Saiah are summarised on this page.