In 2025, 255 US girls were named Kaiya, making it the 994th most common girls’ name of the year, down 131 places from #863 in 2024. That is 59 fewer than the 314 girls named Kaiya in 2024. Its best rank for girls was #651, reached in 2002. That year also had the most girls given the name: 389. For comparison, it was #886 in 2015 and unranked in 1950.
Social Security card records list Kaiya in 48 years of the 146 from 1880 to 2025, starting in 1974 with 6 babies. In all, 8,620 US babies have been given the name, 99.6% of them girls and 0.4% boys. Its busiest decade was the 2000s, with 3,221 babies named Kaiya.
Over the 10 years from 2016 to 2025, 2,884 US girls were named Kaiya; the busiest of those years was 2023, with 353. In 2025 that was about 1 in 6,303 of the girls in SSA’s list for the year.
Among the states, Kaiya ranked highest in Washington in 2025, at #494 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Kay (102,545 babies since 1880), Kai (78,710 babies since 1880), Kaia (20,967 babies since 1880) and Kaye (13,707 babies since 1880). Rarer spellings such as Caiyah are summarised on this page.