Gwendalyn is a distinctive girls' name in United States, ranking #3944 in 2011 with 38 recorded births. The name reached its all-time peak in 2008 with 48 births ranking #3444. Since 1996, the popularity has increased by 192.3%. In 2011, approximately 1 in every 46,284 girls born was named Gwendalyn. FALLING Recent data shows the name is currently falling.