Rosalyn is a distinctive girls' name in United States, ranking #1006 in 2023 with 252 recorded births. The name reached its all-time peak in 2021 with 332 births ranking #832. Since 1996, the popularity has increased by 236.0%. In 2023, approximately 1 in every 6,360 girls born was named Rosalyn. STABLE Recent data shows the name is currently stable.