Roslynn is a distinctive girls' name in United States, ranking #4369 in 2012 with 34 recorded births. The name reached its all-time peak in 2014 with 47 births ranking #3409. Since 1996, the popularity has increased by 240.0%. In 2012, approximately 1 in every 51,787 girls born was named Roslynn. RISING Recent data shows the name is currently rising.