Gwendalyn is a distinctive girls' name in United States, ranking #5529 in 2014 with 24 recorded births. The name reached its all-time peak in 2008 with 48 births ranking #3444. Since 1996, the popularity has increased by 84.6%. In 2014, approximately 1 in every 74,414 girls born was named Gwendalyn. FALLING Recent data shows the name is currently falling.