Roslynn is a distinctive girls' name in United States, ranking #8120 in 1999 with 12 recorded births. The name reached its all-time peak in 2014 with 47 births ranking #3409. Since 1996, the popularity has increased by 20.0%. In 1999, approximately 1 in every 147,815 girls born was named Roslynn. RISING Recent data shows the name is currently rising.