Gwenyth is a distinctive girls' name in United States, ranking #1534 in 2015 with 146 recorded births. The name reached its all-time peak in 2013 with 176 births ranking #1332. Since 1996, the popularity has increased by 1,360.0%. In 2015, approximately 1 in every 12,224 girls born was named Gwenyth. STABLE Recent data shows the name is currently stable.