Gwenyth is a distinctive girls' name in United States, ranking #2489 in 2000 with 61 recorded births. The name reached its all-time peak in 2013 with 176 births ranking #1332. Since 1996, the popularity has increased by 510.0%. In 2000, approximately 1 in every 29,770 girls born was named Gwenyth. STABLE Recent data shows the name is currently stable.