In 2025, 17 US girls were named Kayci, making it the 6,685th most common girls’ name of the year, down 1,603 places from #5,082 in 2024. That is 9 fewer than the 26 girls named Kayci in 2024. Its best rank for girls was #1,855, reached in 1990. That year also had the most girls given the name: 77. For comparison, it was #4,660 in 2015 and unranked in 1950.
Social Security card records list Kayci in 51 years of the 146 from 1880 to 2025, starting in 1974 with 6 babies. In all, 1,667 US babies have been given the name, 99% of them girls and 0.8% boys. Its busiest decade was the 1990s, with 471 babies named Kayci.
Over the 10 years from 2016 to 2025, 277 US girls were named Kayci; the busiest of those years was 2017, with 37. In 2025 that was about 1 in 94,545 of the girls in SSA’s list for the year.
Related spellings in the SSA files include Kacie (12,839 babies since 1880), Kaci (10,183 babies since 1880), Kaycee (9,184 babies since 1880) and Kacy (6,047 babies since 1880).