In 2025, 45 US girls were named Kayley, making it the 3,429th most common girls’ name of the year, down 173 places from #3,256 in 2024. That is 4 fewer than the 49 girls named Kayley in 2024. Its best rank for girls was #548, reached in 1999. That year also had the most girls given the name: 461. For comparison, it was #1,630 in 2015 and unranked in 1950.
Social Security card records list Kayley in 46 years of the 146 from 1880 to 2025, starting in 1977 with 5 babies. In all, 8,586 US babies have been given the name, all of them girls. Its busiest decade was the 2000s, with 3,679 babies named Kayley.
Over the 10 years from 2016 to 2025, 751 US girls were named Kayley; the busiest of those years was 2016, with 125. 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 Kaylee (140,601 babies since 1880), Kayle (4,654 babies since 1880), Cayley (1,213 babies since 1880) and Kailey (27,254 babies since 1880).