In 2025, 70 US girls were named Kayleen, making it the 2,524th most common girls’ name of the year, up 51 places from #2,575 in 2024. That is 1 more than the 69 girls named Kayleen in 2024. Its best rank for girls was #916, reached in 2010. That year also had the most girls given the name: 284. For comparison, it was #1,343 in 2015 and #1,813 in 1950.
Social Security card records list Kayleen in 91 years of the 146 from 1880 to 2025, starting in 1934 with 6 babies. In all, 7,995 US babies have been given the name, all of them girls. Its busiest decade was the 2000s, with 1,966 babies named Kayleen.
Over the 10 years from 2016 to 2025, 1,245 US girls were named Kayleen; the busiest of those years was 2016, with 163. In 2025 that was about 1 in 22,961 of the girls in SSA’s list for the year.
Among the states, Kayleen ranked highest in California in 2025, at #1,702 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Kaylin (19,934 babies since 1880), Kaylynn (12,257 babies since 1880), Kaylyn (12,091 babies since 1880) and Kaylen (8,504 babies since 1880). Rarer spellings such as Kayleeann are summarised on this page.