Roselyn is a distinctive girls' name in England & Wales, ranking #4688 in 2010 with 4 recorded births. This places Roselyn in the bottom 37% 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 2010, approximately 1 in every 80,259 girls born was named Roselyn. RISING Recent data shows the name is currently rising.