Ieuan is a moderately popular boys' name in England & Wales, ranking #193 in 1999 with 168 recorded births. This places Ieuan in the top 5% of ranked UK boys' names for the year. Its actual usage is classified as Moderately Popular. The name reached its all-time peak in 1999 with 168 births ranking #193. Since 1996, the popularity has increased by 13.5%. In 1999, approximately 1 in every 1,805 boys born was named Ieuan. FALLING Recent data shows the name is currently falling.