In 2025, 104 US boys were named Mahdi, making it the 1,629th most common boys’ name of the year, down 24 places from #1,605 in 2024. That is 3 fewer than the 107 boys named Mahdi in 2024. Its best rank for boys was #1,605, reached in 2024. That year also had the most boys given the name: 107. For comparison, it was #1,635 in 2015 and unranked in 1950.
Social Security card records list Mahdi in 52 years of the 146 from 1880 to 2025, starting in 1959 with 5 babies. In all, 2,398 US babies have been given the name, all of them boys. Its busiest decade was the 2010s, with 824 babies named Mahdi.
Over the 10 years from 2016 to 2025, 821 US boys were named Mahdi; the busiest of those years was 2024, with 107. In 2025 that was about 1 in 16,424 of the boys in SSA’s list for the year.
Among the states, Mahdi ranked highest in Michigan in 2025, at #297 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Maudie (11,851 babies since 1880), Maddie (6,253 babies since 1880) and Madie (3,169 babies since 1880). Rarer spellings such as Mehdi, Mahdiya and Mahdy are summarised on this page.