Owain is a moderately popular boys' name in England & Wales, ranking #243 in 2002 with 120 recorded births. The name reached its all-time peak in 2000 with 139 births ranking #220. Since 1996, the popularity has increased by 31.9%. In 2002, approximately 1 in every 2,402 boys born was named Owain. FALLING Recent data shows the name is currently falling.