In 2025, 66 US girls were named Karly, making it the 2,631st most common girls’ name of the year, down 59 places from #2,572 in 2024. That is 3 fewer than the 69 girls named Karly in 2024. Its best rank for girls was #558, reached in 1992. The most girls given the name in a single year was 427, in 1993. For comparison, it was #1,333 in 2015 and unranked in 1950.
Social Security card records list Karly in 54 years of the 146 from 1880 to 2025, starting in 1972 with 10 babies. In all, 10,871 US babies have been given the name, all of them girls. Its busiest decade was the 1990s, with 3,666 babies named Karly.
Over the 10 years from 2016 to 2025, 990 US girls were named Karly; the busiest of those years was 2016, with 177. In 2025 that was about 1 in 24,353 of the girls in SSA’s list for the year.
Among the states, Karly ranked highest in Tennessee in 2025, at #1,051 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Karla (91,895 babies since 1880), Carly (66,626 babies since 1880), Karlee (13,647 babies since 1880) and Carley (17,328 babies since 1880).