Gwendolyn is a moderately popular girls' name in United States, ranking #360 in 2025 with 848 recorded births. The name reached its all-time peak in 2019 with 852 births ranking #370. Since 1996, the popularity has increased by 200.7%. In 2025, approximately 1 in every 1,895 girls born was named Gwendolyn. STABLE Recent data shows the name is currently stable.