In 2025, 72 US girls were named Illiana, making it the 2,467th most common girls’ name of the year, down 150 places from #2,317 in 2024. That is 8 fewer than the 80 girls named Illiana in 2024. Its best rank for girls was #2,131, reached in 2011. That year also had the most girls given the name: 90. For comparison, it was #2,442 in 2015 and unranked in 1950.
Social Security card records list Illiana in 56 years of the 146 from 1880 to 2025, starting in 1956 with 5 babies. In all, 2,095 US babies have been given the name, all of them girls. Its busiest decade was the 2010s, with 694 babies named Illiana.
Over the 10 years from 2016 to 2025, 706 US girls were named Illiana; the busiest of those years was 2022, with 81. In 2025 that was about 1 in 22,323 of the girls in SSA’s list for the year.
Among the states, Illiana ranked highest in California in 2025, at #1,877 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Eliana (76,146 babies since 1880), Elliana (28,058 babies since 1880), Iliana (13,339 babies since 1880) and Ellianna (6,212 babies since 1880).