Fewer than five US boys were named Adolphus in 2025, so it does not appear in that year’s SSA list for boys. Its best rank for boys was #330, reached in 1893. The most boys given the name in a single year was 85, in 1922. For comparison, it was #10,687 in 2015 and #934 in 1950.
Social Security card records list Adolphus in 133 years of the 146 from 1880 to 2025, starting in 1880 with 17 babies. In all, 4,109 US babies have been given the name, all of them boys. Its busiest decade was the 1920s, with 643 babies named Adolphus.
Over the 10 years from 2016 to 2025, 18 US boys were named Adolphus; the busiest of those years was 2016, with 8.
Related spellings in the SSA files include Adolph (18,765 babies since 1880), Adolfo (16,205 babies since 1880) and Adolf (1,394 babies since 1880). The open nickname list we use links it to Ado, Adolph and Dolph.