In 2025, 35 US girls were named Lilyan, making it the 4,132nd most common girls’ name of the year, down 121 places from #4,011 in 2024. That is 2 fewer than the 37 girls named Lilyan in 2024. Its best rank for girls was #595, reached in 1915. The most girls given the name in a single year was 194, in 2007. For comparison, it was #2,157 in 2015 and #5,040 in 1950.
Social Security card records list Lilyan in 100 years of the 146 from 1880 to 2025, starting in 1895 with 6 babies. In all, 4,339 US babies have been given the name, all of them girls. Its busiest decade was the 2000s, with 1,232 babies named Lilyan.
Over the 10 years from 2016 to 2025, 522 US girls were named Lilyan; the busiest of those years was 2016, with 81. In 2025 that was about 1 in 45,922 of the girls in SSA’s list for the year.
Related spellings in the SSA files include Lilian (20,470 babies since 1880), Lillian (476,457 babies since 1880), Lilyann (3,377 babies since 1880) and Lillyann (2,487 babies since 1880). Rarer spellings such as Leilynn, Leilyn and Lelyn are summarised on this page.