In 2025, 64 US girls were named Katy, making it the 2,709th most common girls’ name of the year, down 233 places from #2,476 in 2024. That is 9 fewer than the 73 girls named Katy in 2024. Its best rank for girls was #351, reached in 1987. That year also had the most girls given the name: 674. For comparison, it was #1,547 in 2015 and #1,057 in 1950.
Social Security card records list Katy in 144 years of the 146 from 1880 to 2025, starting in 1880 with 7 babies. In all, 20,957 US babies have been given the name, all of them girls. Its busiest decade was the 1980s, with 5,931 babies named Katy.
Over the 10 years from 2016 to 2025, 933 US girls were named Katy; the busiest of those years was 2016, with 133. In 2025 that was about 1 in 25,114 of the girls in SSA’s list for the year.
Among the states, Katy ranked highest in Texas in 2025, at #1,977 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Karen (990,774 babies since 1880), Catherine (669,611 babies since 1880), Katherine (652,750 babies since 1880) and Kathy (334,870 babies since 1880). The open nickname list we use links it to Kate, Kathy and Katie.