Gwenyth is a distinctive girls' name in United States, ranking #1332 in 2013 with 176 recorded births. The name reached its all-time peak in 2013 with 176 births ranking #1332. Since 1996, the popularity has increased by 1,660.0%. In 2013, approximately 1 in every 9,968 girls born was named Gwenyth. STABLE Recent data shows the name is currently stable.