In 2025, 29 US boys were named Ioannis, making it the 3,796th most common boys’ name of the year, down 437 places from #3,359 in 2024. That is 6 fewer than the 35 boys named Ioannis in 2024. Its best rank for boys was #1,677, reached in 1981. The most boys given the name in a single year was 40, in 2018. For comparison, it was #4,451 in 2015 and unranked in 1950.
Social Security card records list Ioannis in 57 years of the 146 from 1880 to 2025, starting in 1964 with 5 babies. In all, 1,400 US babies have been given the name, all of them boys. Its busiest decade was the 2010s, with 283 babies named Ioannis.
Over the 10 years from 2016 to 2025, 288 US boys were named Ioannis; the busiest of those years was 2018, with 40. In 2025 that was about 1 in 58,899 of the boys in SSA’s list for the year.
Related spellings in the SSA files include John (5,204,377 babies since 1880), Jack (759,677 babies since 1880), Joan (488,939 babies since 1880) and Jean (483,475 babies since 1880).