Ieuan is a moderately popular boys' name in England & Wales, ranking #222 in 2001 with 137 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. In 2001, approximately 1 in every 2,101 boys born was named Ieuan. FALLING Recent data shows the name is currently falling.