In 2025, 759 US boys were named Julius, making it the 424th most common boys’ name of the year, down 38 places from #386 in 2024. That is 84 fewer than the 843 boys named Julius in 2024. Its best rank for boys was #88, reached in 1883. The most boys given the name in a single year was 1,416, in 1918. For comparison, it was #311 in 2015 and #301 in 1950.
Social Security card records list Julius in every one of the 146 years from 1880 to 2025; in 1880 there were 143 babies with the name. In all, 85,038 US babies have been given the name, 0.5% of them girls and 99.5% boys. Its busiest decade was the 1920s, with 11,066 babies named Julius.
Over the 10 years from 2016 to 2025, 9,316 US boys were named Julius; the busiest of those years was 2021, with 1,040. In 2025 that was about 1 in 2,250 of the boys in SSA’s list for the year.
Among the states, Julius ranked highest in Rhode Island in 2025, at #217 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Julio (64,197 babies since 1880), Julien (14,032 babies since 1880), Jules (11,467 babies since 1880) and Juli (6,351 babies since 1880). Rarer spellings such as Julious, Juluis and Julis are summarised on this page.