Fewer than five US boys were named Lannie in 2025, so it does not appear in that year’s SSA list for boys. Its best rank for boys was #571, reached in 1949. That year also had the most boys given the name: 139. For comparison, it was unranked (under five boys) in 2015 and #724 in 1950.
Fewer than five US girls were named Lannie in 2025, so it does not appear in that year’s SSA list for girls. Its best rank for girls was #889, reached in 1881. The most girls given the name in a single year was 28, in 1944. For comparison, it was #13,830 in 2015 and #2,026 in 1950.
Social Security card records list Lannie in 131 years of the 146 from 1880 to 2025, starting in 1881 with 5 babies. In all, 3,424 US babies have been given the name, 46% of them girls and 54% boys. Its busiest decade was the 1950s, with 707 babies named Lannie.
In none of the 10 years from 2016 to 2025 were five or more US boys named Lannie.
Related spellings in the SSA files include Lanny (9,644 babies since 1880), Lani (7,556 babies since 1880), Lanie (5,637 babies since 1880) and Laynie (2,279 babies since 1880).