Roslynn is a distinctive girls' name in United States, ranking #4140 in 2013 with 36 recorded births. The name reached its all-time peak in 2014 with 47 births ranking #3409. Since 1996, the popularity has increased by 260.0%. In 2013, approximately 1 in every 48,734 girls born was named Roslynn. RISING Recent data shows the name is currently rising.