In 2025, 721 US boys were named Mario, making it the 438th most common boys’ name of the year, down 40 places from #398 in 2024. That is 89 fewer than the 810 boys named Mario in 2024. Its best rank for boys was #102, reached in 1980. That year also had the most boys given the name: 2,936. For comparison, it was #286 in 2015 and #246 in 1950.
Social Security card records list Mario in 127 years of the 146 from 1880 to 2025, starting in 1897 with 7 babies. In all, 152,403 US babies have been given the name, 0.7% of them girls and 99% boys. Its busiest decade was the 1980s, with 26,707 babies named Mario.
Over the 10 years from 2016 to 2025, 9,507 US boys were named Mario; the busiest of those years was 2016, with 1,156. In 2025 that was about 1 in 2,369 of the boys in SSA’s list for the year.
Among the states, Mario ranked highest in Nevada in 2025, at #222 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Marion (261,713 babies since 1880), Marlo (10,944 babies since 1880), Marius (2,654 babies since 1880) and Mary (4,156,654 babies since 1880). Rarer spellings such as Mariusz are summarised on this page.