In 2025, 304 US girls were named Siya, making it the 879th most common girls’ name of the year, up 55 places from #934 in 2024. That is 20 more than the 284 girls named Siya in 2024. Its best rank for girls was #879, reached in this year, 2025. That year also had the most girls given the name: 304. For comparison, it was #1,767 in 2015 and unranked in 1950.
Social Security card records list Siya in 25 years of the 146 from 1880 to 2025, starting in 2000 with 10 babies. In all, 3,183 US babies have been given the name, all of them girls. Its busiest decade was the 2020s, with 1,345 babies named Siya.
Over the 10 years from 2016 to 2025, 2,026 US girls were named Siya; the busiest of those years was 2025, with 304. In 2025 that was about 1 in 5,287 of the girls in SSA’s list for the year.
Among the states, Siya ranked highest in New Jersey in 2025, at #322 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Zia (3,550 babies since 1880), Sia (2,795 babies since 1880), Ziya (1,896 babies since 1880) and Ziyah (1,401 babies since 1880). Rarer spellings such as Siyah, Seiya and Syah are summarised on this page.