Gwendalyn is a distinctive girls' name in United States, ranking #4016 in 2002 with 32 recorded births. The name reached its all-time peak in 2008 with 48 births ranking #3444. Since 1996, the popularity has increased by 146.2%. In 2002, approximately 1 in every 56,151 girls born was named Gwendalyn. FALLING Recent data shows the name is currently falling.