Roselyn is a distinctive girls' name in England & Wales, ranking #2605 in 2025 with 10 recorded births. This places Roselyn in the top 34% of ranked UK girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2015 with 13 births ranking #2070. In 2025, approximately 1 in every 25,328 girls born was named Roselyn. RISING Recent data shows the name is currently rising.