In 2025, 381 US girls were named Kathryn, making it the 729th most common girls’ name of the year, down 14 places from #715 in 2024. That is 12 fewer than the 393 girls named Kathryn in 2024. Its best rank for girls was #45, reached in 1951. The most girls given the name in a single year was 8,504, in 1952. For comparison, it was #318 in 2015 and #46 in 1950.
Social Security card records list Kathryn in every one of the 146 years from 1880 to 2025; in 1880 there were 204 babies with the name. In all, 456,515 US babies have been given the name, 99.7% of them girls and 0.2% boys. Its busiest decade was the 1950s, with 77,933 babies named Kathryn.
Over the 10 years from 2016 to 2025, 5,679 US girls were named Kathryn; the busiest of those years was 2016, with 839. In 2025 that was about 1 in 4,219 of the girls in SSA’s list for the year.
Among the states, Kathryn ranked highest in Alabama in 2025, at #333 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Catherine (669,611 babies since 1880), Katherine (652,750 babies since 1880), Cathryn (16,332 babies since 1880) and Katerina (8,021 babies since 1880). Rarer spellings such as Kathrin, Kathren and Catherina are summarised on this page. The open nickname list we use links it to Kate, Kathy and Katie.