Gwynneth is a distinctive girls' name in United States, ranking #17501 in 2013 with 5 recorded births. The name reached its all-time peak in 2001 with 16 births ranking #6725. Since 1996, the popularity has decreased by 28.6%. In 2013, approximately 1 in every 350,883 girls born was named Gwynneth. STABLE Recent data shows the name is currently stable.