Iann is a distinctive boys' name in United States, ranking #10534 in 1999 with 5 recorded births. This places Iann in the bottom 9% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2010 with 33 births ranking #3339. Since 1996, the popularity has decreased by 16.7%. In 1999, approximately 1 in every 384,017 boys born was named Iann. FALLING Recent data shows the name is currently falling.