In 2025, 6 US girls were named Kaytlyn, making it the 14,061st most common girls’ name of the year, down 5,869 places from #8,192 in 2024. That is 7 fewer than the 13 girls named Kaytlyn in 2024. Its best rank for girls was #1,168, reached in 1995. The most girls given the name in a single year was 158, in 1998. For comparison, it was #7,804 in 2015 and unranked in 1950.
Social Security card records list Kaytlyn in 41 years of the 146 from 1880 to 2025, starting in 1985 with 9 babies. In all, 2,722 US babies have been given the name, all of them girls. Its busiest decade was the 1990s, with 1,272 babies named Kaytlyn.
Over the 10 years from 2016 to 2025, 141 US girls were named Kaytlyn; the busiest of those years was 2017, with 26. In 2025 that was about 1 in 267,878 of the girls in SSA’s list for the year.
Related spellings in the SSA files include Kaitlyn (166,921 babies since 1880), Kaitlin (57,430 babies since 1880), Caitlyn (52,637 babies since 1880) and Katlyn (18,438 babies since 1880).