Fewer than five US girls were named Kellyann in 2025, so it does not appear in that year’s SSA list for girls. Its best rank for girls was #1,393, reached in 1969. That year also had the most girls given the name: 69. For comparison, it was #11,392 in 2015 and unranked in 1950.
Social Security card records list Kellyann in 62 years of the 146 from 1880 to 2025, starting in 1959 with 7 babies. In all, 1,843 US babies have been given the name, all of them girls. Its busiest decade was the 1970s, with 494 babies named Kellyann.
Over the 10 years from 2016 to 2025, 29 US girls were named Kellyann; the busiest of those years was 2021, with 7.
Related spellings in the SSA files include Kellan (11,269 babies since 1880) and Kellyn (2,209 babies since 1880). Rarer spellings such as Kellianne, Kellyanne and Kellieann are summarised on this page.