In 2025, 45 US girls were named Carolynn, making it the 3,409th most common girls’ name of the year, up 363 places from #3,772 in 2024. That is 5 more than the 40 girls named Carolynn in 2024. Its best rank for girls was #568, reached in 1942. That year also had the most girls given the name: 169. For comparison, it was #3,358 in 2015 and #851 in 1950.
Social Security card records list Carolynn in 107 years of the 146 from 1880 to 2025, starting in 1917 with 8 babies. In all, 6,453 US babies have been given the name, all of them girls. Its busiest decade was the 1940s, with 1,467 babies named Carolynn.
Over the 10 years from 2016 to 2025, 425 US girls were named Carolynn; the busiest of those years was 2019, with 53. In 2025 that was about 1 in 35,717 of the girls in SSA’s list for the year.
Related spellings in the SSA files include Carolyn (558,397 babies since 1880), Caroline (250,719 babies since 1880), Karolyn (5,957 babies since 1880) and Carolann (5,652 babies since 1880). Rarer spellings such as Karalynn, Karilynn and Caroleann are summarised on this page.