Gwendalyn is a distinctive girls' name in United States, ranking #7432 in 1997 with 12 recorded births. This places Gwendalyn in the top 46% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2008 with 48 births ranking #3444. In 1997, approximately 1 in every 145,055 girls born was named Gwendalyn. FALLING Recent data shows the name is currently falling.