Gweneth is a distinctive girls' name in United States, ranking #11245 in 1997 with 7 recorded births. The name reached its all-time peak in 2008 with 52 births ranking #3233. Since 1996, the popularity has increased by 40.0%. In 1997, approximately 1 in every 248,666 girls born was named Gweneth. RISING Recent data shows the name is currently rising.