Gweneth is a distinctive girls' name in United States, ranking #3566 in 2011 with 44 recorded births. The name reached its all-time peak in 2008 with 52 births ranking #3233. Since 1996, the popularity has increased by 780.0%. In 2011, approximately 1 in every 39,973 girls born was named Gweneth. RISING Recent data shows the name is currently rising.