In 2025, 5 US girls were named Josilyn, making it the 15,987th most common girls’ name of the year, down 1,715 places from #14,272 in 2024. That is 1 fewer than the 6 girls named Josilyn in 2024. Its best rank for girls was #2,613, reached in 2006. That year also had the most girls given the name: 69. For comparison, it was #4,914 in 2015 and unranked in 1950.
Social Security card records list Josilyn in 47 years of the 146 from 1880 to 2025, starting in 1962 with 6 babies. In all, 1,132 US babies have been given the name, all of them girls. Its busiest decade was the 2000s, with 469 babies named Josilyn.
Over the 10 years from 2016 to 2025, 139 US girls were named Josilyn; the busiest of those years was 2016, with 38. In 2025 that was about 1 in 321,453 of the girls in SSA’s list for the year.
Related spellings in the SSA files include Jocelyn (113,412 babies since 1880), Joselyn (18,219 babies since 1880), Joselin (4,204 babies since 1880) and Josselyn (3,330 babies since 1880).