Ieuan is a distinctive boys' name in England & Wales, ranking #2440 in 2025 with 9 recorded births. The name reached its all-time peak in 1999 with 168 births ranking #193. Since 1996, the popularity has decreased by 93.9%. In 2025, approximately 1 in every 30,215 boys born was named Ieuan. FALLING Recent data shows the name is currently falling.