Roslynn is a distinctive girls' name in United States, ranking #4711 in 2010 with 31 recorded births. The name reached its all-time peak in 2014 with 47 births ranking #3409. Since 1996, the popularity has increased by 210.0%. In 2010, approximately 1 in every 57,333 girls born was named Roslynn. RISING Recent data shows the name is currently rising.