In 2025, 180 US boys were named Kasey, making it the 1,162nd most common boys’ name of the year, down 2 places from #1,160 in 2024. That is 0 more than the 180 boys named Kasey in 2024. Its best rank for boys was #454, reached in 1988. The most boys given the name in a single year was 467, in 1990. For comparison, it was #1,573 in 2015 and unranked in 1950.
In 2025, 105 US girls were named Kasey, making it the 1,876th most common girls’ name of the year, down 283 places from #1,593 in 2024. That is 27 fewer than the 132 girls named Kasey in 2024. Its best rank for girls was #201, reached in 1988. The most girls given the name in a single year was 1,394, in 1992. For comparison, it was #1,093 in 2015 and #5,678 in 1950.
Social Security card records list Kasey in 74 years of the 146 from 1880 to 2025, starting in 1950 with 5 babies. In all, 45,949 US babies have been given the name, 73% of them girls and 27% boys. Its busiest decade was the 1990s, with 14,895 babies named Kasey.
Over the 10 years from 2016 to 2025, 1,255 US boys were named Kasey; the busiest of those years was 2025, with 180. In 2025 that was about 1 in 9,489 of the boys in SSA’s list for the year.
Among the states, Kasey ranked highest in Mississippi in 2025, at #497 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Casey (194,775 babies since 1880), Kaycee (9,184 babies since 1880), Kacey (15,265 babies since 1880) and Kacy (6,047 babies since 1880). Rarer spellings such as Kaysee, Kasiya and Kaisei are summarised on this page.