Gwendalyn is a distinctive girls' name in United States, ranking #3958 in 1998 with 29 recorded births. The name reached its all-time peak in 2008 with 48 births ranking #3444. Since 1996, the popularity has increased by 123.1%. In 1998, approximately 1 in every 60,927 girls born was named Gwendalyn. FALLING Recent data shows the name is currently falling.