Ioan is a distinctive boys' name in United States, ranking #11454 in 2007 with 6 recorded births. This places Ioan in the bottom 20% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2014 with 11 births ranking #7229. In 2007, approximately 1 in every 345,873 boys born was named Ioan. STABLE Recent data shows the name is currently stable.