Rosalyn is a distinctive girls' name in United States, ranking #888 in 2024 with 303 recorded births. This places Rosalyn in the top 5% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2021 with 332 births ranking #832. Since 1996, the popularity has increased by 304.0%. In 2024, approximately 1 in every 5,324 girls born was named Rosalyn. STABLE Recent data shows the name is currently stable.