In 2025, 41 US girls were named Siani, making it the 3,700th most common girls’ name of the year, up 760 places from #4,460 in 2024. That is 9 more than the 32 girls named Siani in 2024. Its best rank for girls was #1,786, reached in 1998. That year also had the most girls given the name: 88. For comparison, it was #8,880 in 2015 and unranked in 1950.
Social Security card records list Siani in 34 years of the 146 from 1880 to 2025, starting in 1991 with 5 babies. In all, 1,166 US babies have been given the name, all of them girls. Its busiest decade was the 2000s, with 420 babies named Siani.
Over the 10 years from 2016 to 2025, 199 US girls were named Siani; the busiest of those years was 2025, with 41. In 2025 that was about 1 in 39,202 of the girls in SSA’s list for the year.
Rarer spellings such as Ciani, Sianni and Cianni are summarised on this page.