Ioan is a moderately popular boys' name in England & Wales, ranking #292 in 2005 with 110 recorded births. The name reached its all-time peak in 2007 with 129 births ranking #296. Since 1996, the popularity has increased by 587.5%. In 2005, approximately 1 in every 2,813 boys born was named Ioan. FALLING Recent data shows the name is currently falling.