Ioan is a moderately popular boys' name in England & Wales, ranking #310 in 2002 with 86 recorded births. The name reached its all-time peak in 2007 with 129 births ranking #296. Since 1996, the popularity has increased by 437.5%. In 2002, approximately 1 in every 3,352 boys born was named Ioan. FALLING Recent data shows the name is currently falling.