Owain is a moderately popular boys' name in England & Wales, ranking #220 in 2000 with 139 recorded births. This places Owain in the top 6% of ranked UK boys' names for the year. Its actual usage is classified as Moderately Popular. The name reached its all-time peak in 2000 with 139 births ranking #220. Since 1996, the popularity has increased by 52.7%. In 2000, approximately 1 in every 2,109 boys born was named Owain. FALLING Recent data shows the name is currently falling.