Gweneth is a distinctive girls' name in United States, ranking #5015 in 2012 with 28 recorded births. The name reached its all-time peak in 2008 with 52 births ranking #3233. Since 1996, the popularity has increased by 460.0%. In 2012, approximately 1 in every 62,884 girls born was named Gweneth. RISING Recent data shows the name is currently rising.