In 2025, 19 US boys were named Iann, making it the 5,101st most common boys’ name of the year, up 418 places from #5,519 in 2024. That is 2 more than the 17 boys named Iann in 2024. Its best rank for boys was #3,016, reached in 2003. The most boys given the name in a single year was 33, in 2010. For comparison, it was #3,619 in 2015 and unranked in 1950.
Social Security card records list Iann in 31 years of the 146 from 1880 to 2025, starting in 1991 with 5 babies. In all, 591 US babies have been given the name, all of them boys. Its busiest decade was the 2010s, with 253 babies named Iann.
Over the 10 years from 2016 to 2025, 227 US boys were named Iann; the busiest of those years was 2020, with 31. In 2025 that was about 1 in 89,899 of the boys in SSA’s list for the year.
Related spellings in the SSA files include Ian (258,479 babies since 1880), Ione (10,004 babies since 1880), Ean (6,562 babies since 1880) and Iain (2,911 babies since 1880).