Gweneth is a distinctive girls' name in United States, ranking #6037 in 2000 with 18 recorded births. The name reached its all-time peak in 2008 with 52 births ranking #3233. Since 1996, the popularity has increased by 260.0%. In 2000, approximately 1 in every 100,887 girls born was named Gweneth. RISING Recent data shows the name is currently rising.