In 2025, 9 US girls were named Kasie, making it the 10,493rd most common girls’ name of the year, up 2,293 places from #12,786 in 2024. That is 2 more than the 7 girls named Kasie in 2024. Its best rank for girls was #811, reached in 1987. That year also had the most girls given the name: 216. For comparison, it was #7,120 in 2015 and unranked in 1950.
Social Security card records list Kasie in 61 years of the 146 from 1880 to 2025, starting in 1963 with 5 babies. In all, 4,223 US babies have been given the name, 99.5% of them girls and 0.5% boys. Its busiest decade was the 1980s, with 1,562 babies named Kasie.
Over the 10 years from 2016 to 2025, 122 US girls were named Kasie; the busiest of those years was 2017, with 20. In 2025 that was about 1 in 178,585 of the girls in SSA’s list for the year.
Related spellings in the SSA files include Kacey (15,265 babies since 1880), Kaci (10,183 babies since 1880), Cassie (47,027 babies since 1880) and Kasey (45,949 babies since 1880). Rarer spellings such as Kasiah are summarised on this page.