In 2025, 11 US girls were named Lundyn, making it the 9,232nd most common girls’ name of the year, down 2,677 places from #6,555 in 2024. That is 7 fewer than the 18 girls named Lundyn in 2024. Its best rank for girls was #2,313, reached in 2011. That year also had the most girls given the name: 81. For comparison, it was #3,569 in 2015 and unranked in 1950.
Social Security card records list Lundyn in 32 years of the 146 from 1880 to 2025, starting in 1992 with 7 babies. In all, 973 US babies have been given the name, 99% of them girls and 0.6% boys. Its busiest decade was the 2010s, with 505 babies named Lundyn.
Over the 10 years from 2016 to 2025, 232 US girls were named Lundyn; the busiest of those years was 2016, with 38. In 2025 that was about 1 in 146,115 of the girls in SSA’s list for the year.
Related spellings in the SSA files include London (54,779 babies since 1880), Londyn (27,777 babies since 1880) and Londynn (3,141 babies since 1880).