In 2025, 13 US boys were named Irwin, making it the 6,600th most common boys’ name of the year, down 1,076 places from #5,524 in 2024. That is 4 fewer than the 17 boys named Irwin in 2024. Its best rank for boys was #245, reached in 1931. The most boys given the name in a single year was 527, in 1925. For comparison, it was #5,149 in 2015 and #560 in 1950.
Social Security card records list Irwin in every one of the 146 years from 1880 to 2025; in 1880 there were 22 babies with the name. In all, 15,958 US babies have been given the name, 0.1% of them girls and 99.9% boys. Its busiest decade was the 1920s, with 4,440 babies named Irwin.
Over the 10 years from 2016 to 2025, 152 US boys were named Irwin; the busiest of those years was 2019, with 20. In 2025 that was about 1 in 131,390 of the boys in SSA’s list for the year.
Related spellings in the SSA files include Irving (44,449 babies since 1880), Irvin (39,997 babies since 1880) and Erwin (21,262 babies since 1880). The open nickname list we use links it to Erwin.