Gweneth is a distinctive girls' name in United States, ranking #4518 in 2005 with 30 recorded births. The name reached its all-time peak in 2008 with 52 births ranking #3233. Since 1996, the popularity has increased by 500.0%. In 2005, approximately 1 in every 61,590 girls born was named Gweneth. RISING Recent data shows the name is currently rising.