Fewer than five US girls were named Lyndsie in 2025, so it does not appear in that year’s SSA list for girls. Its best rank for girls was #1,594, reached in 1989. That year also had the most girls given the name: 88. For comparison, it was unranked (under five girls) in 2015 and unranked in 1950.
Social Security card records list Lyndsie in 41 years of the 146 from 1880 to 2025, starting in 1975 with 5 babies. In all, 1,473 US babies have been given the name, all of them girls. Its busiest decade was the 1980s, with 544 babies named Lyndsie.
Over the 10 years from 2016 to 2025, 12 US girls were named Lyndsie; the busiest of those years was 2017, with 6.
Related spellings in the SSA files include Lyndsey (14,420 babies since 1880) and Lyndsi (1,043 babies since 1880). Rarer spellings such as Lindzie, Lyndzie and Lyndzi are summarised on this page.