Owain is a moderately popular boys' name in England & Wales, ranking #235 in 2003 with 137 recorded births. This places Owain in the top 5% 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 50.5%. In 2003, approximately 1 in every 2,186 boys born was named Owain. FALLING Recent data shows the name is currently falling.