Gwendalyn is a distinctive girls' name in United States, ranking #4489 in 2001 with 27 recorded births. The name reached its all-time peak in 2008 with 48 births ranking #3444. Since 1996, the popularity has increased by 107.7%. In 2001, approximately 1 in every 66,687 girls born was named Gwendalyn. FALLING Recent data shows the name is currently falling.