Fewer than five US girls were named Retha in 2025, so it does not appear in that year’s SSA list for girls. Its best rank for girls was #431, reached in 1901. The most girls given the name in a single year was 252, in 1924. For comparison, it was unranked (under five girls) in 2015 and #610 in 1950.
Social Security card records list Retha in 113 years of the 146 from 1880 to 2025, starting in 1884 with 6 babies. In all, 10,597 US babies have been given the name, all of them girls. Its busiest decade was the 1920s, with 2,078 babies named Retha.
In none of the 10 years from 2016 to 2025 were five or more US girls named Retha.
Related spellings in the SSA files include Rita (285,230 babies since 1880), Reta (8,616 babies since 1880), Retta (3,399 babies since 1880) and Reatha (2,624 babies since 1880). Rarer spellings such as Rheta, Reatta and Reetha are summarised on this page.