In 2025, 343 US boys were named Junior, making it the 752nd most common boys’ name of the year, down 69 places from #683 in 2024. That is 55 fewer than the 398 boys named Junior in 2024. Its best rank for boys was #115, reached in 1925. The most boys given the name in a single year was 1,590, in 1926. For comparison, it was #823 in 2015 and #407 in 1950.
Social Security card records list Junior in 136 years of the 146 from 1880 to 2025, starting in 1882 with 9 babies. In all, 43,182 US babies have been given the name, 0.5% of them girls and 99.5% boys. Its busiest decade was the 1920s, with 13,048 babies named Junior.
Over the 10 years from 2016 to 2025, 3,194 US boys were named Junior; the busiest of those years was 2024, with 398. In 2025 that was about 1 in 4,980 of the boys in SSA’s list for the year.
Among the states, Junior ranked highest in Massachusetts in 2025, at #451 for boys there. It was not in the top 100 of any state. Rarer spellings such as Jonier and Junor are summarised on this page. The open nickname list we use links it to Jr, June and Junie.