Gwendalyn is a distinctive girls' name in United States, ranking #5056 in 2013 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 2013, approximately 1 in every 64,978 girls born was named Gwendalyn. FALLING Recent data shows the name is currently falling.