In 2025, 197 US girls were named Leni, making it the 1,179th most common girls’ name of the year, up 67 places from #1,246 in 2024. That is 10 more than the 187 girls named Leni in 2024. Its best rank for girls was #1,179, reached in this year, 2025. The most girls given the name in a single year was 201, in 2023. For comparison, it was #3,814 in 2015 and #3,335 in 1950.
Social Security card records list Leni in 65 years of the 146 from 1880 to 2025, starting in 1938 with 6 babies. In all, 1,962 US babies have been given the name, 99% of them girls and 1.4% boys. Its busiest decade was the 2020s, with 949 babies named Leni.
Over the 10 years from 2016 to 2025, 1,233 US girls were named Leni; the busiest of those years was 2023, with 201. In 2025 that was about 1 in 8,159 of the girls in SSA’s list for the year.
Among the states, Leni ranked highest in Nebraska in 2025, at #444 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Lennie (7,725 babies since 1880), Lani (7,556 babies since 1880), Lenny (9,035 babies since 1880) and Leonie (2,231 babies since 1880). Rarer spellings such as Leiani, Leyani and Lynia are summarised on this page.