In 2025, 71 US girls were named Caitlyn, making it the 2,492nd most common girls’ name of the year, down 141 places from #2,351 in 2024. That is 7 fewer than the 78 girls named Caitlyn in 2024. Its best rank for girls was #115, reached in 1998. That year also had the most girls given the name: 2,937. For comparison, it was #598 in 2015 and unranked in 1950.
Social Security card records list Caitlyn in 54 years of the 146 from 1880 to 2025, starting in 1968 with 5 babies. In all, 52,637 US babies have been given the name, 99.9% of them girls and 0.1% boys. Its busiest decade was the 1990s, with 22,003 babies named Caitlyn.
Over the 10 years from 2016 to 2025, 1,514 US girls were named Caitlyn; the busiest of those years was 2016, with 249. In 2025 that was about 1 in 22,638 of the girls in SSA’s list for the year.
Among the states, Caitlyn ranked highest in Texas in 2025, at #1,936 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Katelyn (134,206 babies since 1880), Caitlin (112,426 babies since 1880), Katelynn (30,691 babies since 1880) and Katelin (8,917 babies since 1880). Rarer spellings such as Caitlynne, Cathlyn and Catlynn are summarised on this page. The open nickname list we use links it to Cait and Caity.