In 2025, 420 US girls were named Lillie, making it the 676th most common girls’ name of the year, up 7 places from #683 in 2024. That is 2 more than the 418 girls named Lillie in 2024. Its best rank for girls was #33, reached in 1881. The most girls given the name in a single year was 3,262, in 1919. For comparison, it was #577 in 2015 and #202 in 1950.
Social Security card records list Lillie in every one of the 146 years from 1880 to 2025; in 1880 there were 652 babies with the name. In all, 159,791 US babies have been given the name, 99% of them girls and 0.5% boys. Its busiest decade was the 1920s, with 29,587 babies named Lillie.
Over the 10 years from 2016 to 2025, 4,210 US girls were named Lillie; the busiest of those years was 2016, with 495. In 2025 that was about 1 in 3,827 of the girls in SSA’s list for the year.
Among the states, Lillie ranked highest in South Carolina in 2025, at #236 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Lilly (66,752 babies since 1880), Lilia (14,319 babies since 1880), Lili (3,862 babies since 1880) and Lilli (3,383 babies since 1880). Rarer spellings such as Lilliah, Lyllie and Lylie are summarised on this page.