Fewer than five US girls were named Rosann in 2025, so it does not appear in that year’s SSA list for girls. Its best rank for girls was #774, reached in 1943. The most girls given the name in a single year was 110, in 1952. For comparison, it was unranked (under five girls) in 2015 and #942 in 1950.
Social Security card records list Rosann in 77 years of the 146 from 1880 to 2025, starting in 1914 with 6 babies. In all, 2,903 US babies have been given the name, all of them girls. Its busiest decade was the 1950s, with 929 babies named Rosann.
In none of the 10 years from 2016 to 2025 were five or more US girls named Rosann.
Related spellings in the SSA files include Roseann (15,878 babies since 1880), Rosanne (14,752 babies since 1880), Roseanne (7,307 babies since 1880) and Rozanne (1,385 babies since 1880). Rarer spellings such as Rozan are summarised on this page.