Gwynneth is a distinctive girls' name in United States, ranking #9174 in 2014 with 12 recorded births. The name reached its all-time peak in 2001 with 16 births ranking #6725. Since 1996, the popularity has increased by 71.4%. In 2014, approximately 1 in every 148,828 girls born was named Gwynneth. STABLE Recent data shows the name is currently stable.