Rosalyn is a distinctive girls' name in United States, ranking #1719 in 2002 with 107 recorded births. The name reached its all-time peak in 2021 with 332 births ranking #832. Since 1996, the popularity has increased by 42.7%. In 2002, approximately 1 in every 16,793 girls born was named Rosalyn. STABLE Recent data shows the name is currently stable.