In 2025, 87 US girls were named Harlyn, making it the 2,142nd most common girls’ name of the year, down 738 places from #1,404 in 2024. That is 73 fewer than the 160 girls named Harlyn in 2024. Its best rank for girls was #1,128, reached in 2017. That year also had the most girls given the name: 221. For comparison, it was #2,420 in 2015 and unranked in 1950.
In 2025, 24 US boys were named Harlyn, making it the 4,304th most common boys’ name of the year, up 1,444 places from #5,748 in 2024. That is 8 more than the 16 boys named Harlyn in 2024. Its best rank for boys was #1,677, reached in 1936. The most boys given the name in a single year was 24, in 2025. For comparison, it was #7,689 in 2015 and unranked in 1950.
Social Security card records list Harlyn in 43 years of the 146 from 1880 to 2025, starting in 1919 with 7 babies. In all, 2,265 US babies have been given the name, 81% of them girls and 19% boys. Its busiest decade was the 2010s, with 1,101 babies named Harlyn.
Over the 10 years from 2016 to 2025, 1,532 US girls were named Harlyn; the busiest of those years was 2017, with 221. In 2025 that was about 1 in 18,474 of the girls in SSA’s list for the year.
Among the states, Harlyn ranked highest in Kentucky in 2025, at #788 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Harlan (26,980 babies since 1880), Harlen (3,520 babies since 1880), Harleen (1,480 babies since 1880) and Harlynn (1,310 babies since 1880). Rarer spellings such as Harlynne are summarised on this page.