In 2025, 57 US boys were named Erwin, making it the 2,402nd most common boys’ name of the year, up 27 places from #2,429 in 2024. That is 0 more than the 57 boys named Erwin in 2024. Its best rank for boys was #216, reached in 1901. The most boys given the name in a single year was 512, in 1918. For comparison, it was #2,576 in 2015 and #573 in 1950.
Social Security card records list Erwin in every one of the 146 years from 1880 to 2025; in 1880 there were 16 babies with the name. In all, 21,262 US babies have been given the name, 0.2% of them girls and 99.7% boys. Its busiest decade was the 1920s, with 4,502 babies named Erwin.
Over the 10 years from 2016 to 2025, 520 US boys were named Erwin; the busiest of those years was 2025, with 57. In 2025 that was about 1 in 29,966 of the boys in SSA’s list for the year.
Among the states, Erwin ranked highest in Massachusetts in 2025, at #817 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Ervin (39,129 babies since 1880) and Irwin (15,958 babies since 1880). Rarer spellings such as Erwan are summarised on this page. The open nickname list we use links it to Irwin.