Gwenyth is a distinctive girls' name in United States, ranking #1604 in 2012 with 135 recorded births. The name reached its all-time peak in 2013 with 176 births ranking #1332. Since 1996, the popularity has increased by 1,250.0%. In 2012, approximately 1 in every 13,043 girls born was named Gwenyth. STABLE Recent data shows the name is currently stable.