Ieuan is a distinctive boys' name in England & Wales, ranking #559 in 2012 with 65 recorded births. The name reached its all-time peak in 1999 with 168 births ranking #193. Since 1996, the popularity has decreased by 56.1%. In 2012, approximately 1 in every 5,360 boys born was named Ieuan. FALLING Recent data shows the name is currently falling.