In 2025, 1,249 US boys were named Maximus, making it the 276th most common boys’ name of the year, up 55 places from #331 in 2024. That is 204 more than the 1,045 boys named Maximus in 2024. Its best rank for boys was #187, reached in 2016. The most boys given the name in a single year was 2,137, in 2014. For comparison, it was #197 in 2015 and unranked in 1950.
Social Security card records list Maximus in 29 years of the 146 from 1880 to 2025, starting in 1997 with 5 babies. In all, 34,679 US babies have been given the name, all of them boys. Its busiest decade was the 2010s, with 18,694 babies named Maximus.
Over the 10 years from 2016 to 2025, 14,893 US boys were named Maximus; the busiest of those years was 2016, with 2,129. In 2025 that was about 1 in 1,368 of the boys in SSA’s list for the year.
Among the states, Maximus ranked highest in Nevada in 2025, at #139 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Maximiliano (23,972 babies since 1880), Maximilian (18,940 babies since 1880) and Maximillian (5,968 babies since 1880). Rarer spellings such as Maximos, Maxamus and Maximas are summarised on this page.