Gwendalyn is a distinctive girls' name in United States, ranking #3444 in 2008 with 48 recorded births. The name reached its all-time peak in 2008 with 48 births ranking #3444. Since 1996, the popularity has increased by 269.2%. In 2008, approximately 1 in every 39,390 girls born was named Gwendalyn. FALLING Recent data shows the name is currently falling.